The patent directive: what it does and does not cover

Nick Scott-Ram
UK Bioindustry Association
77 Great Clarendon Street
Oxford OX2 6AU
UK
Ladies and Gentlemen, it gives me a great pleasure to have the opportunity to talk to you about the biotechnology patent directive. Armin Machmer, who follows me, will address the political process and what that involves. It took ten years for this directive from initiation to final approval a few weeks ago and that is a considerable amount of time
The biotechnology patent directive
The directive is a balance between the variety of different interests, including industry, the consumer, legislators and also, for the first time in such detail, ethics in biotechnology. The main focus of the directive is on patentability of biological material: what can and cannot be patented. Also, important from a public perception view point, it covers the question of patentability of human genes. Another important issue is the infringement on second generation material, i.e. on material that is capable of reproducing or being reproduced. The areas on ethical issues and the question of the plant varieties is clarified in the directive. In the directive, the farmer’s privilege and compulsory cross-licensing represent a derogation from the patent rights.
Before going into detail on the directive, a couple of areas need to be highlighted:
Discovery and invention
There has been a debate about the difference between discovery and invention. Many people argued that if you found or isolated a gene from the human body, or even from an animal, that was a discovery and not an invention. However, prior to that, the European Patent Office (EPO) has said that even if you find something which is a substance freely occuring in nature, there is a distinction between whether it is just a discovery or a whether it is subsequently isolated and then used for a technical purpose. This would be more akin to an invention. The EPO guidelines for examination (Part C, Ch. IV, 2) say on naturally occurring products (Article 52(3) EPC - Discoveries): "To find a substance freely occurring in nature is also mere discovery and therefore unpatentable. However, if a substance found in nature has first to be isolated from its surroundings and a process for obtaining it is developed, that process is patentable. Moreover, if that substance can be properly characterised either by its structure, by the process by which it is obtained or by other parameters and it is ‘new’ in the absolute sense of having no previously recognised existence, then the substance per se may be patentable. An example of such a case is that of a new substance which is discovered as being produced by a micro-organism."
DNA is not "life"
Another difficult question at the time when the directive was debated in European Parliament, concerned the question of DNA. "DNA is akin to life" was an often used argument. The European Patent Office, in a case between the Howard Florey Institute versus the Green Party of European Parliament, argued on this, for "Relaxin" (EP-B-0112149), DNA fragments encoding human H2-preprorelaxin: "it is worth pointing out that DNA is not ‘life’, but a chemical substance which carries genetic information and can be used as an intermediate in the production of proteins which may be medically useful".
This was an important distinction. It was also important that it came forward ans was clarified.
Exceptions to patentability under the European Patent Convention (EPC)
Article 53 of the EPC is critically important for today’s discussion. It covers two situations where patents cannot be patented. It says:
"European patents should not be granted in respect of:
a) inventions the publication or exploitation of which would be contrary to ‘ordre public’ or morality, provided that the exploitation shall not be deemed to be so contrary merely because it is prohibited by law or regulation in some or all of the Contracting States;
b) plant or animal varieties or essentially biological processes for the production of plants or animals; this provision does not apply to microbiological processes or the products thereof."
Prior to the EU biotechnology patent directive, there was a lot of debate over the difference between plant varieties and transgenic plants and transgenic animals, and how those relate in patent law on plant and animal varieties. The definition of a plant variety is : "characterised by at least one single transmissible characteric distinguishing it from other plant groupings and which is sufficiently homogeneous and stable in its relevant characteristics" (Council Regulation (EC) no 2100/94). However, you can also argue that, if you insert a new gene through a common DNA technology, e.g. coding for petal colour using a series of genes, you end producing a variety as well. It is not clear how patent legislation should distinguish this.
Historically, crossing and selection of plant varieties is not patentable. However, when you use recombinant DNA technology, involving the insertion of single genes should be patentable.
For animal varieties, the situation is even more complex. There is no unanimity about the definition of animal variety. There are different definitions for animal varieties in different languages. E.g. in French ‘races animales’, and in German ‘Tierarten‘ (meaning species). Species are groups of interbreeding populations which are reproductively isolated from other such groups. Simply drawing parallels is therefore not possible.
Case law
Recent European Patent Office Opposition proceedings covering this issue include the Technical Board of Appeal Decision T356/93 Re Plant Genetic Systems - "Plant Cells": the case of Plant Genetic Systems versus Greenpeace (1995, T356/93) about herbicide resistant transgenic plants (EP-B-242236). Greenpeace argued that patentability of transgenic plants is immoral; that it was a plant variety and that an essentially biologically process for the production of plants was used. The EPC Technical Board decided, referring to Article 53b, that "plant cells as such, which can be cultured like bacteria and yeast, cannot be considered to fall under the definition of a plant or a plant variety." They are "considered to be ‘microbiological products’ in the broad sense". As for the ‘essentially biological process’, the EPC decided that "a process for the production of plants comprising at least one essential step, which cannot be carried out without human intervention...shall be taken into account. A process which, taken as a whole, does not exist in nature and is more than a traditional breeding process shall be considered patentable".
Also in this Technical Board of Appeal Decision it says that
- the claims to plants per se were directed to plant varieties and therefore invalid, even though the claims did not appear to define a variety, examples used in the specification involved recognised plant varieties, because the transgene was genetically stable, and because any claim to the transgene would cover varieties
- products of microbiological processes have to be micro-organisms themselves or metabolites of them
- claims directed to plant cells per se are allowed
- the herbicide resistant transgenic plants are not contrary to morality
So you cannot get claims to transgenic plants and in theory the same can be applied to transgenic animals.
The new EU patent directive
It is clear that part of the difficulty in defining the scope of definitions for ‘plant varieties’, ‘microbiological processes’ and the applicability to transgenic animals and plants involves the overlap in applicability: traditional crossing of whole genomes cannot be patented, while transgenic organisms can. Transgenic organisms can be defined as those organisms where one or more specific, well determined DNA coding sequences are introduced by direct gene transfer. The new directive seeks to address this difficult area of the dividing line and scope of patentability of transgenic organisms and how this links to traditional breeding techniques. It is one of the important features in the new directive.
The directive helps to clarify the position in respect of these issues. In particular, Articles 2, 4 and 6* provides the basis for clarifying the scope of patenting transgenic animals and plants in respect of microbiological processes, plant and animal varieties and ethical requirements.
Article 2 starts with defining biological material, and when a process is essentially biological. Any natural crossing or selection is an essentially biological process. The concept of plant variety is also defined; this refers back to the previous definition (EC 2100/94).
In Article 3, the directive restates the fundamental principles of patentability (new inventions, involving an inventive step, industrial applicability).
In addition to the articles, the directive has a number of recitals, which help to clarify some ot the areas around it. They help to give a greater interpretation of the articles, and are meant as a guidance.
Recital 29, about plant and animal varieties, says that if you have a patent that covers a transgenic plant and it is only directed at one variety, than you would not get that patented. Recital 30 iterates the concept of plant varieties.
Article 4 follows the EPC, saying that neither plant and animal varieties, nor essentially biological processes are patentable. Article 4.2 and 4.3 say that you cannot get claims to transgenic plants or animals, provided that you are not focusing on one particular variety. That is an important point in the Directive. Recital 31 covers the situations when you are extending this to new varieties. Recital 32 and 33: a new plant variety which is derived from a variety which cannot be patented cannot be covered by a patent. It relates back to the definitions of essentially biological.
The next issue that comes up concerns patentability of nucleotide sequences derived from human research and human genetic material. The Parliament was keen to balance out the ethical considerations in relation to patentability of human gene sequences (recital 16). Some people had the idea "if you patent one of my gene sequences, you own part of me". Nothing is further from the truth, but the perception people had of it was a matter of concern. Article 5 states, that no parts of the human body are patentable. However, an isolated element is patentable, and also the industrial application of a (partial) sequence of a gene must be given. In patent terms, if you work with cDNA then that is not naturally occurring. And if you work with interferon and only put down the structure and no industrial applicability or technical input in it, than that will constitute a discovery. With an application or indication of a function it is a patent. The EPO takes the approach that if you have a problem, and you find the solution, then that is where you have the invention coming in. A number of recitals clarify issues around this (Recitals 22, 23, 24, 25, 26).
The Directive also gives directions on the scope of the Farmer's privilege in respect of transgenic animals (Articles 8 and 1, and Recitals 47 and 50*). There was a lot of debate about the scope and extent of this pivilege, such as farm saved seed and transgenic animals. Farm saved seed. Article 11.1 says that farmers can use the patented material on their farm, but not for resale. On transgenic animals the way Article 11.2 is drafted is more vague. This will be discussed this afternoon. This is an area where there could be ambiguity about what you would define as an agricultural actitivity and how much overlap there would be with that within the sale. It also means that if you make transgenic organisms or transgenic animals, i.e. BSE resistant cows, and if you take this combined with Article 6.2.d , one would have to look very closely whether or not you could get adequate patent coverage out of that. To me it is not really clear. And it will take some time before the patent applications will work their way through the EPO.
As for cross-licensing, I would like to refer to the information pack of today’s meeting.
Research exemption
There is often a lot of concern that a patent can stop fundamental research going on. Under European law you have exemption from patent infringement for doing research on a patent for non-commercial acts and acts done for experimental purposes. The reason behind it is that patents should only prohibit economic commercial exploitation of the invention. The precise interpretation of these criteria can be difficult. In the pharmaceutical area in Europe, it is such that, when you take a product into a clinical trial that would no longer constitute an experimental purpose. You then are on the development pathway at a stage where you are looking to commercialise a product. In your industries there may be different marking points at which you can say you are definitely going to commercialise something or not. That is something you would have to look at on a case to case basis.
There is a difference here from the USA where legislation is more lean. In the USA it are more later stage clinical trials which would cause an infringement of the patent. However, in Europe it is still early in the development and this area is not fully explored yet.
Comparison between Europe and the United States
Apart from the basic patent law differences (i.e. grace period, transgenic plants and animals, derogation and cross-licensing) the differences are not too big.
- Inventions vs discoveries
USA allow patents on discoveries, however
USA law prohibits patents on ‘products of nature’
USA law permits patents on purified strains of naturally-occurring plants and
microbes
- Human genetic sequences and ESTs
USA requires ‘utility’ for ESTs
There are substantially differences on
- Transgenic plants
USA allows all transgenic plants and plant materials to be patentable
- Transgenic animals
USA allows patenting of all transgenic animals
- Requirements for derogations and cross-licensing
USA have no farmer’s privilege or compulsory cross-licensing
Due to these substantial differences the debate on whether Europe is setting up trade barriers or not to USA imported material is probably going on.
These were the main issues in the EU patent directive for biotechnological inventions. Thank you for your attention.
  * Annex to these proceedings is a copy of the Directive

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