What to do if your Patent is Infringed

Patents Court and Intellectual Property Enterprise Court 

Author Judicial Office Licence CC BY-SA 4.0 Source Wikimedia Commons

 

Jane Lambert

1. What do I do if my Patent is infringed?

The first thing to do is to take some specialist legal advice.  Do not take matters into your own hands unless and until you have done so. Intellectual property law differs from other types of law in that sending a letter before claim that would be perfectly acceptable in most circumstances can sometimes be actionable.  That is because s.70A (1) of the Patents Act 1977 provides:

"Subject to subsections (2) to (5), a threat of infringement proceedings made by any person is actionable by any person aggrieved by the threat."

The law on groundless threats has recently been reformed.  It used to be far more draconian. There are now a number of exceptions and defences that did not exist before. But the provision can still land you in big trouble if you fall foul of it.   And one further point!  Not every solicitor or barrister in general civil or commercial practice has heard of s.70A (1) so make sure that you go to an IP specialist for advice on how to deal with suspected patent infringement.

2.  Where will I find Specialist Advice?

Barristers specializing in intellectual property law are eligible to join the Intellectual Property Bar Association, I am a member of that Association and so are most of my colleagues.  There are a lot of barristers who know about IP law who are not members but it is not always easy to identify them.

Many specialist law firms and law firms with expertise in IP law belong to the Intellectual Property Lawyers Association. There are however many law firms with expertise in IP law that do not.  Firms with such expertise tend to publish a lot of articles and give lots of talks on the topic. 

All Chartered Patent Attorneys will have acquired a thorough knowledge of patent law.  Many but not all will also have qualified as "patent attorney litigators" or "patent attorney advocates."  Some attorneys' firms have litigation departments. Others have arrangements with specialist law firms some of which practise from the same premises and under the same names.  The patent attorneys' professional association is the Chartered Institute of Patent Attorneys ("CIPA").

3.   How do I know if my Patent has Been Infringed?

Patents are granted for inventions that may be products or processes.  

S.60 (1) (a) of the Patents Act 1977 says that where the invention is a product a person infringes the patent if he or she makes, disposes of, offers to dispose of, uses or imports the product or keeps it whether for disposal or otherwise in the UK without the consent of the owner of the patent.

Where the invention is a process, s.60 (1) (b) says that a person infringes the patent if he or she uses the process or offers the process for use in the UK when he or she knows, or it would be obvious to a reasonable person in the circumstances, that its use there without the consent of the owner would be an infringement of the patent.

Where the invention is a process s.60 (1) (c) further provides that a person infringes a patent if he or she disposes of, offers to dispose of, uses or imports any product obtained directly by means of that process or keeps any such product whether for disposal or otherwise.

4.  Yes but how do I identify that "Product" or"Process"?

When you or your patent attorney applied for a patent for your invention you will have filed a document called a "specification".   The specification will have contained a description of the invention and several numbered paragraphs known as "the claims"

S.125 (1) of the Act provides:

"For the purposes of this Act an invention for a patent for which an application has been made or for which a patent has been granted shall, unless the context otherwise requires, be taken to be that specified in a claim of the specification of the application or patent, as the case may be, as interpreted by the description and any drawings contained in that specification, and the extent of the protection conferred by a patent or application for a patent shall be determined accordingly."

Your invention is therefore set out in those claims.   

Thus, anyone who disposes of offers to dispose of uses or imports a product that is described in any of those claims infringes the patent for that product.  Similarly, anyone who uses a process that is described in any of those claims infringes the patent for that process.  Anyone who disposes of offers to dispose of uses or imports any product obtained directly by means of that process also infringes the patent for that process. 

5.   So  How does it work exactly?

The court works out what the claim means.  Often it breaks the claim into its "integers" or "features" as in the following example:

“1A An apparatus for automatically controlling a ventilator comprising:
1B first means for processing data indicative of at least a measured oxygen level of a patient, and for providing output data indicative of:
1C required concentration of oxygen in inspiratory gas of the patient (FiO2) and positive end-expiratory pressure (PEEP) for a next breath of the patient;
1D wherein FiO2 is determined to reduce the difference between the measured oxygen level of the patient and a desired value;
1E wherein PEEP is determined to keep a ratio of PEEP/FiO2 within a prescribed range and, while keeping the ratio within the prescribed range, to keep the measured oxygen level of the patient above a predefined value; and
1F second means, operatively coupled to the first means, for providing control signals, based on the output data provided by the first means, to the ventilator;
1G wherein the control signals provided to the ventilator automatically control PEEP, and FiO2, for a next breath of the patient.”

(see para [8] of Tehrani v Hamilton Bonaduz AG and others [2021] EWHC 3457 (IPEC) (22 Dec 2021).

As the exclusive right to exploit an invention for up to 20 years is a reward for teaching the world how to make or use it, the court reads the claim in the way that it would be understood by a "person skilled in the art".   He or she is the person to whom the specification is addressed.  He or she is often referred to as"the skilled addressee". Any special terminology or conventions that might be used by such skilled addressee are applied by the court.  Usually, the court requires experts in the technology to explain the terminology or conventions.

Once the court has decided what the claim means it looks at the defendant's product or process to see whether it has the claimed integers.   If the defendant's product or process does have those integers, then the claim is infringed.

6.    So Everything hangs on the Interpretation of the Claim?

Not quite!   The patent is infringed only if the claim is valid.    The first thing that a defendant does when he or she is accused of patent infringement is to investigate the validity of the claim.   There are all sorts of reasons why a claim might not be valid.   The claim may be for something that has already been invented.   That is called "anticipation". Alternatively, it may claim something that would be obvious to a person skilled in the art.  In that case, it would lack an inventive step. 

7.     Wouldn't that be picked up by the Examiners when an Application is made for a Patent?

Not necessarily!  Examiners do their best but they have only so much time and only so many resources.  They will read the patents, patent applications and technical literature in English.  Possibly they may know some other European language and they will consult patent databases or journals in those languages.  But much of the world's technical literature is now published in Mandarin, Japanese and Korean and not many examiners in this country or even at the European Patent Office in Munich speak those languages.  A prior disclosure may be a previous patent application but it may equally be an article in a scientific or technical journal.  If the information is available to the public then it is already known. 

8.     Phew!  So how often are Patents found to be invalid?

I don't have any statistics but quite often as you can see from looking at previous decisions of the Patents Court or Intellectual Property Enterprise Court.

9,.    Are they the Courts that decide Patent Infringement Cases?

Yes. They are the courts for patent infringement disputes in England and Wales.   

The Intellectual Property Enterprise Court ("IPEC") entertains claims that are worth £500,000 or less that can be tried in no more than 2 days.  Cases are very tightly managed in that court.   The costs that can be recovered by a successful party from the unsuccessful one are limited to £50,000 on the determination of liability and £25,000 for the determination of the damages or other financial remedy that is due to the successful party.

The Patents Court hears all other patent cases.   There are no time limits or limits on recoverable costs in cases before the Patents Court.   The judges of that court do their best to control costs but expert witnesses and specialist counsel and solicitors are expensive.

The Patents Court and IPEC are headquartered in the Rolls Building off Fetter Lane in London.  The judges of both courts have said that they will travel outside London for the convenience of the parties and witnesses or to save costs. To the best of my knowledge and belief, the Patents Court has only once sat in Birmingham.  I think that is also true of IPEC.   

There is a patents court in  Edinburgh which is part of the Outer House of the Court of Session.   The Chancery Division of the High Court of Justice of Northern Ireland hears patent infringement cases in Belfast.

If you have a foreign patent you have to go to the courts of the country for which the patent was granted.  Some countries like Germany, Switzerland and the Netherlands have specialist patent tribunals. Other countries do not.   TahylorWessing has a website called the Patent Map which has lots of useful information about patent litigation throughout Europe.

10.   So how much is that likely to cost me?

A lot of money even in IPEC.   A Patents Court dispute over the use of standard-essential patents can cost many millions of pounds.   That is because there are several technical trials to decide whether each patent is valid, essential to the standard and infringed and then a final trial to decide the terms of licences to use the patents.   If you run a start-up or indeed any other small or medium enterprise I strongly advise you to take out patent litigation insurance. I have written quite a lot about patent insurance in this blog over the years and can commend CIPA's work on the topic.

11.   Further Information

This article barely scratches the surface of a huge topic and I am aware that I have left out lots of crucial information.  If you have a specific enquiry call me on 020 7404 5252 during office hours or send me a message through my contact form. 

So You've Got A Patent!

Jane Lambert

Congratulations! It probably took a little longer to get than you expected. It almost certainly cost you more money than you had bargained for.  But so long as you pay the renewal fees you have an asset that is bound to make your fortune. Right?

Well, not exactly. You have a right to stop other people from making, marketing, importing or selling something that you have invented but a patent is not a meal ticket. It exists to give you an opportunity to recoup the time and money you spent in devising the invention and perhaps a little extra on the side either by working the patent yourself or by licensing it to others. Whether you can do that or not will depend on whether anybody wants to buy your invention.

If there is a market for the invention, there is always a possibility that somebody will want to muscle in. Such a person may want to do it fairly by seeking a licence from you or by using a technology that does not infringe your patent, but there are also those who would try to sweep your patent out of the way in revocation or declaration of non-infringement proceedings or simply ignore your patent if they don't think you can afford to enforce it.  Unlike some other intellectual property rights such as copyright, trade marks, rights in performances or, nowadays, registered designs, it is not an offence to infringe a patent in this country even if it is done quite blatantly, cynically and on an industrial scale.

If anyone infringes your patent you have to sue and patent litigation is not cheap. You can't use the small claims track of the Intellectual Property Enterprise Court ("IPEC") because the rules specifically exclude patents, registered and registered Community designs, semiconductor topography and plant variety claims from that tribunal.  You can use the IPEC multitrack but you have to be prepared to pay up to £50,000 if you lose the case and probably a great deal more than that to your own legal team. That is a lot better than the Patents Court where the costs that can be awarded against you are unlimited and can run into millions.

So unless you are a millionaire, your company is really coining it or you have some other source of funding you should consider before-the-event insurance cover against IP disputes before a dispute arises (see my article It is never enough to get a patent, trade mark or registered design 19 Aug 2019 and my links to other articles). It is unrealistic to expect a lawyer specializing in IP to represent you on a no-win no-fee basis because the risks, costs and wait for payment are too great however strong your case. IP insurance is not cheap but it is a lot better than bankruptcy or watching a competitor ride roughshod over your rights.

So, what should you do if you think that someone is infringing your patent? Well, one thing you should not do is take matters in your own hands and write a stroppy letter to the other side. S.70 of the Patents Act 1977 and subsequent sections prohibit threats of patent infringement proceedings that cannot be made out. If you make such a threat (however politely) you risk an action for an injunction, declaration and costs that could cost you plenty. Any lawyer or patent attorney with any experience of patent litigation will be aware of this section but many non-specialist lawyers aren't. If they make a groundless threat on your behalf it is you who will have to carry the can.

Where do you find a specialist lawyer? Any firm that belongs to the Intellectual Property Lawyers Association should be able to help you. There are good solicitors in other firms but you have to be careful because not every solicitor who claims experience of IP has actually done a patent case.  Another possible option is a patent attorney litigator.  Not every patent attorney has expertise in civil litigation but there is a growing number who have. The CIPA and IPReg websites should help you find one. Yet another option is to consult a member of the IP Bar. We are advocates and not litigators but we are probably in a better position than most to recommend a good litigator.

Civil proceedings begin with the service or delivery of a claim form on the alleged wrongdoer.  The claim form is usually accompanied by another document known as particulars of claim. Those particulars must state the facts on which you base your claim and the remedy that you want precisely. In a patent infringement claim, your particulars of claim must state which of the claims of your patent is alleged to have been infringed and give at least one example of at least one alleged infringement.  The "claims" are the numbered paragraphs at the end of your patent specification setting out the features of your invention.  The reason they are set out in numbered paragraphs is that if one of them is too broad you may still be able to rely on one of the others. If your invention is a product the patent is infringed by making, marketing, importing or using a product that has all the features of at least one of the claims.

It is possible that the alleged infringer will accept the strength of your case and seek a settlement or simply throw in the towel but you cannot bank on that. He or she may challenge your interpretation of the claim and argue that his or her product falls outside its wording,  It is likely that he or she will dispute the validity of the patent on one of several grounds.  If your opponent can show that someone else invented exactly the same thing before you applied for your patent can be revoked (taken away) on the grounds that your invention was not new. Another possible ground for revocation is that your invention would have been obvious to anyone with the appropriate skills and knowledge having regard to everything that was known at the time of your application.  You might think that all this would have been considered by the examiner when you applied for your patent but the sad fact is that the time and resources that are available to an examiner are nothing like the time and resources that your opponent will expend in order to knock out your patent.  A surprisingly large number of patents are revoked in whole or in part when patentees bring infringement claims.

If you win your action you will be awarded an injunction and a contribution to your legal fees which will be limited to £50,000 if you brought your claim in IPEC.  You would probably get more if you sue in the Patents Court but even the awards in that court are unlikely to cover everything you spent. An injunction is an order by a judge to do or not to do something. If it is disobeyed the court may punish the defendant with a fine or even imprisonment.  What you will not get at this stage is damages or accountable profits.  That will require another hearing known as an account or inquiry which may take place several months or even a year or so in the future. That will also cost a lot of money,

There is obviously a lot more to patent enforcement than I can mention in a short note.  The important thing is to think about enforcement and arrange to fund it whether by insurance or otherwise well before a dispute arises. If you want to discuss this article or anything relating to it, call me on 020 7404 5252 or send me a message through my contact form.

Business and Technical Information from Patent Databases

Jane Lambert

An invention is a solution to a technical problem. When applying for a patent for an invention, the inventor has to file among other things a document known as a "specification".  Such specification must contain a description of the invention and any drawing referred to in the description and disclose the invention in a manner which is clear enough and complete enough for the invention to be performed by a person skilled in the art. In due course, the specification is examined by officials of the intellectual property office known as "examiners" for compliance with the legislation governing patents and published on the office's website for all to see.

As an invention has to be new and involve an inventive step to justify a patent, such publications are important sources of scientific and technical information.  Many of those publications are held on giant databases such as the UK Intellectual Property Office's Ipsum, the European Patent Office's Espacenet and Google Patents.

These are two good reasons for consulting such a database.  The first is that you have an invention for which you seek a patent. You will want to check the prior art to ascertain whether your invention really is new and does involve an inventive step.  In almost every case your patent attorney will do that for you when you first instruct him but, if there is something out there that you can spot for yourself, you can save yourself a lot of time and money and instruct him more effectively by making your own search.  The second good reason is to find out about the latest technology.  In Why researchers should care about patents, the European Patent Office offers three advantages:

• Avoiding duplication of R&D efforts and spending; 
• Finding solutions to technical problems; and
• Gathering business intelligence. 

Henk Heus actually gives 10 Reasons Why Research Scientists Should Patent Search though these seem to be substantially the same as the EPO's (see 29 Oct 2015 GQ Life Sciences). According to Heus, up to 30% of R&D expenditure is wasted on duplicating research that has already been carried out.
Different databases will allow you to search in different ways.  With Ipsum, you need the application or publication number and the first page will look like this:

From the menu in the top right-hand corner, you can select the documents that you need.  Nearly every transaction relating to the invention will be recorded on Ipsum. So if you want to trace the prosecution history this is the place to go.   Espacenet and Google will allow you to search by proprietor, title and other search terms as well as by number.  These are the tools that you will use to make a more general enquiry,

When you find an invention that interests you can choose the full specification or the parts of the specification that interest you most such as the abstract, description, drawings or claims. The abstract will be a summary of the invention.  The description is essentially an instruction manual. It will identify the problem that the invention seeks to solve, discuss previous attempted solutions where they fell short. set out the solution in principle and then give an example.  It may do that by reference to numbered diagrams known as the "drawings".  At the end of the specification, there will be numbered paragraphs known as "the claims". That is the monopoly sought by the applicant.  Usually, the widest is expressed first and all subsequent ones tend to be narrower than the first rather like a matryoshka doll.    You should remember at all times that the specification is addressed to the "person skilled in the art", that is to say, the person or team of persons having the knowledge, skills and experience to make or use the invention.  Some words or terms may have a special meaning which is different from everyday usage.

While not essential, some introductory training in patent searching can help at the start.  Patent search workshops have been offered from time to time by the British Library and some of the other Business and IP Centres around the country. I shall be giving a short one-hour introduction to patent, trade mark and design searches and how to read patent specifications at the Menai Science Park on Angelsey between 13:30 and 14:30 on 29 Nov 2019 (see How to use Patent, Trade Mark and Registered Design Databases 2 Nov 2019 NIPC Wales). If you want to sign up for the class which is free, click here.

Anyone wishing to discuss this article or patents generally should call me on 020 7404 5252 during office hours or send me a message through my contact page.

The Role of the Translator

Pieter Bruegel "Tower of Babel"    Source Wikipedia

If you want a patent for your invention you have to persuade the Intellectual Property Office  that the invention is new and involves an inventive step {see s.1 (1) (a) (b) Patents Act 1977).  S.2 (1) provides that invention shall be taken to be new if it does not form part of the state of the art.  S.3 also refers to the state of the art when explaining what us meant by an inventive step:

"An invention shall be taken to involve an inventive step if it is not obvious to a person skilled in the art, having regard to any matter which forms part of the state of the art by virtue only of section 2(2) above (and disregarding section 2(3) above)."

The term state of the art is one that is used frequently by advertisers and others well outside patent law but what exactly does the phrase mean?

State of the Art

For the purpose of this discussion I shall take the definition provided by s.2 (2) as 

"all matter (whether a product, a process, information about either, or anything else) which has at any time before the priority date of that invention been made available to the public (whether in the United Kingdom or elsewhere) by written or oral description, by use or in any other way."

It is actually slightly broader than that but we can put that to one side for today. It is everything that has been made available to the public by written or oral description by use or in any other way anywhere in the world. That includes patents and patent applications of course but also academic papers, brochures catalogues, data sheets, web pages - you name it.  And - and this is the crucial bit - the disclosure does not have to be in English. If in some sleepy Swiss canton or the back streets of Algiers someone has anticipated your invention or come so close to your invention that your invention  is obvious you won't get a patent or, if you do get a patent, your grant could be revoked.  As Tommy Cooper used to say: "Just like that."

How to protect yourself
So what do you do about it? Well search! Search as many relevant patents and patent applications as you can. Search also the technical and trade literature. And not just in English. If you happen to know of an academic working in the same field at a Swiss University in some idyllic mountain valley the good professor is likely to publish his results in German.  If your competitor trades in Algiers his first foreign language is likely to be French and that's the language in which he will publish his brochures and data sheets.

But we Brits are very bad linguists. Most of us do French and possibly German up to GCSE and then drop it for A" levels in something else. That is not enough to make sense of a patent specification or article. So what next? Well here's where Alison (or someone like her) comes in.

Alison Penfold
Alison is a freelance technical translator specializing in patents and other intellectual property work. Her languages are French and German and she also knows some Dutch. She is an Associate Member of the Institute of Translation and Interpreting (AITI).  She read French, German and Linguistics at the University of East Anglia and rook a postgraduate diploma in translation and interpreting with distinction from the University of Kent. She worked for Lloyd Wise Tregear as a staff translator between 1987 and 2007 and then for Marks & Clerk between 2007 and 2009. Since then she has practised on her own account.

Revocation Proceedings 
You may also need a translator if you think you are sued or likely to be sued for patent infringement. If possible you will want to claim that the patent is invalid on the ground that the invention was anticipated or obvious having regard to the prior art.  At least some of the materials on which your lawyers or patent attorneys will rely are likely to be in a foreign language for which you will need a translation.

Further Information
If you want to discuss this article or patent law in general, call me on 020 7404 5252 during office hours or send me a message. You can also tweet me, write on my wall or contact me through G+, Linkedin or Xing.