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LICENSING EXECUTIVES SOCIETYBritain and IrelandNEWS EXCHANGE
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A Route Around DNA PatentsSince 1980, the US PTO alone has granted over 20,000 patents on genes or related inventions. With all these monopolies on genes floating about, it can be difficult to conduct research without infringing a patent, let alone devise a product offering such as a new drug. There has been much recent discussion on whether such patents are granted too easily and if this has led to a stifling of scientific research in the area (for example, the Nuffield Council on Bioethics report of 23 July 2002 "The Ethics of Patenting DNA", www.nuffieldbioethics.org). However, these restrictions have also inspired researchers to devise ways to circumvent these patents by using gene activation ("endogenous gene activation") rather than manipulating the gene and the technologies based on the gene itself, which are usually patented. Endogenous gene activation allows researchers to do more than just further research on drug candidates, it also allows companies to create drugs closely related to the patented protein-based drugs without infringing that patent. Essentially, this concept is not new in patenting. These researchers are merely using the now public knowledge disclosed in the patent and building upon it without having to actually use it (and therefore, they are avoiding paying licence fees to the patent holder). Endogenous gene activation is also the subject of the recent UK Court of Appeal decision of 31 July 2002 on the patent dispute regarding anti-anaemia drugs between Kirin Amgen Inc. ("Amgen") and Transkaryotic Therapies Inc ("TKT") (and the subject of concurrent US court actions). Amgen has a patent on the production of the protein erythropoietin ("EPO"), which covers both the DNA and amino acid sequence for EPO. EPO is a protein that regulates the production of red blood cells. When the oxygen level in the blood is low, more EPO is produced. When the level returns to normal, EPO production is reduced. Amgen did not discover EPO but its researchers identified its DNA and amino acid sequences. Amgen's technology took the human EPO DNA and, using known genetic manipulation techniques, inserted it into a non-human host cell where it could be manipulated to express EPO at high levels. This is "exogenous gene activation" as the human EPO is expressed in a non-human cell and did not originate from the original genetic material of that host cell. TKT's EPO technology inserts an exogenous promoter or "switch" upstream from the EPO DNA sequence and then the human cell can be manipulated to produce EPO. This is endogenous gene activation, as the genome containing the EPO DNA is in a human host cell (and the DNA is endogenous to that cell). Amgen sued TKT for infringement of Amgen's EPO patent. Amgen's patent claims were structured in such a way that to infringe the patent, EPO had to be produced using particular methods of expression, which involved manipulation of the EPO DNA. The Court of Appeal in reversing the decision of the High Court held that TKT had not infringed Amgen's patent as "[t]here are real differences between an isolated DNA sequence which is suitable for use in a host cell and a DNA sequence in a cell which needs activation…. The patentee could not monopolise the gene per se as that existed in nature. The patentee therefore monopolised the DNA sequence encoding for DNA when isolated and in that respect was suitable for use to express EPO in a host cell…. To seek to monopolise use of the sequence when not isolated by inserting a construct into a human cell would provide a monopoly not properly supported by the description in the specification. We also believe that third parties could reasonably expect that if they did not use a DNA sequence for insertion into a host cell, there would be no infringement." The Court also held that TKT had not committed purposive or non-literal infringement (the UK equivalent to the doctrine of equivalents in US patent law). It is expected that Amgen will seek leave to appeal this decision to the House of Lords. The outcome of TKT's appeal from a US court decision regarding Amgen's US EPO patents is yet to be handed down. Whether endogenous gene activation is capable of being used to circumvent patents in this area will depend on how wide the claims in the exogenous gene patents are drafted (that is, to include not only the gene and the resulting protein, but all manner of methodologies capable of producing that protein from the gene). Although Amgen's EPO patent is drafted very widely, it was obviously not wide enough to satisfy the Court of Appeal. Anna Feros, Shepherd+ Wedderburn, London
Top President's Diary
Welcome back to LES and to work following a summer that, for me, passes all too quickly.
As President LES GB&I, I have just returned from attending the Pan European conference in Prague organised by LES Czech Republic.
Next year, in place of the Pan European Conference, the LES International meetings will be hosted by LES Scandinavia and held in Oslo. The theme for these meetings will be "Licensing in a Changing World" and will focus on geopolitical and ethical issues in licensing. As a member of the LESI Healthcare committee, I have been involved in planning a workshop for Oslo to explore the ethical issues with regard to the licensing and patenting of DNA related technologies. The Oslo meetings will take place 15-18 June 2003. On October 30 2002, we will be presenting the first European based LES International course covering the Fundamentals of Intellectual Asset Management. The venue will be the Royal Overseas League in London and the course tutors will be Chris Goodman and Stephen Powell. This is the first in a family of twelve seminars that we aim to run on a regular basis across Europe. These seminars have been presented for a number of years in the United States and delegates completing each course will be awarded a certificate. The next Pan European conference will take place in Paris at the Hotel Sofitel Bercy, September 8-11 2004. Please remember that all LES members are welcome to attend and we really do want to hear your views regarding subjects to be covered in the workshops, plenary sessions and round table discussions. Christi Mitchell,
A Tangled WebBackgroundThis case in the United States District Court concerned an allegation of infringement of claims 3, 5, 6 and 7 of US Patent No. 4873662 by BT Telecommunications Plc (BT) by Prodigy Communications Corporation (Prodigy) through its business activities as an Internet Service Provider (ISP). BT had also alleged that Prodigy induced and contributed to infringement by Prodigy subscribers who also infringed by accessing the Internet through the Prodigy service. The patent had been granted in 1989 on an application filed in 1980 in the days of the (old) Post Office, based upon an application originally filed in the United Kingdom in 1976. The invention of the patent had been developed to overcome difficulties in VIEWDATA and similar systems in which information is obtained from a remote computer and transmitted to terminal apparatus though a public telephone network. Following the rapid development of the Internet in the 1990s, it seems that BT concluded that the claims of its patent could be interpreted to cover certain Internet activities. Despite the age of the invention, action was still possible in the US. Dollar signs therefore began to appear in great numbers. This was to be a battle of giants. In the UK, at least, BT needs no introduction. Prodigy may not be well known in the UK but its networks can provide dial-up access, using a local telephone call, to about 90% of households in the US. The Court had previously given an opinion construing the claims of the patent and Prodigy moved for summary judgement of non-infringement under the Federal Rules of Civil Procedure. A not inconsiderable burden is placed upon the party seeking summary judgement, particularly as the Court must view the evidence in the light most favourable to the party against whom judgement is being sought, and must draw all reasonable inferences in its favour. The ArgumentsDetermining patent infringement is a two stage process. First, the Court construes the claims of the patent to determine their scope and meaning. Then the alleged infringement is compared with each construed claim to see if it has all of the features of the claims. Where there is no literal infringement, it is also necessary to see if infringement can be found based upon the Doctrine of Equivalents. Of the claims alleged to be infringed, claims 3 and 5 are independent claims and claims 6 and 7 are subsidiary claims appendant to claim 5. Claim 3 is directed to a digital information storage retrieval and display system and claims 5, 6 and 7 to a terminal apparatus for use in such a system. All of the claims recite several features, but the arguments concentrated on two in particular and it was the Court's view on these two features which was to lead ultimately to BT's downfall, and to the issue of a decision and order in Prodigy's favour. The two features are the presence or absence of a central computer and of two-part blocks of information where one of those parts contains the complete address for the information in the other part. On the central computer issue, BT argued that each web server on the Internet is a "central computer" as defined in the claims of the patent. Prodigy, and more importantly the Court, did not agree, the Court commenting that because "the Internet is not a computer network consisting of a centralized computer that stores all of the data accessible by remote terminals, web servers on the Internet cannot literally infringe the patent". The Court also rejected the BT attempt to rely on the Doctrine of Equivalents commenting that "a central computer containing all of the data accessible by a remote terminal user operates in substantially different ways from the Internet". The Court further commented that " the Internet is the very antithesis of a digital information storage system having a central computer and that the opposite of a claim limitation cannot be considered its equivalent". The Court also rejected BT's attempt to argue that claims 5, 6 and 7 were not limited by the phrase "central computer" commenting that such an argument was "without merit". On the blocks of information issue the Court also rejected BT's arguments that Hypertext Markup Language (HTML) files provided on web servers on the Internet, provide or at least are equivalent to the blocks of information required by the claims of the patent. Unfortunately for BT, the Court did not agree commenting that "unlike the blocks of information required by the patent, HTML code, which is the primary language of the World Wide Web and of the Prodigy Internet service, does not use blocks. HTML code does not separate displayed information into a first sub-unit, and non-displayed information in a contiguous, separable second sub-unit. Rather, HTML code contains information to be displayed intermingled with other information concerning formatting and linking, such as URLs and anchors". The Court also dismissed BT's argument on equivalence, relying in so doing upon amendments made and arguments supplied to overcome cited prior art by the applicants themselves during the prosecution of the application on which the patent was granted. BT's contention that claims 5, 6 and 7 were not limited by the "blocks of information" phrase was also rejected by the Court. The Court did not address BT's arguments on inducement and contributory infringement in any detail in view of its conclusions on primary infringement. ConclusionHaving considered all the arguments, the Court therefore concluded that "as a matter of law, no jury could find that Prodigy infringes the patent, nor that Prodigy contributes to infringement of the patent, nor actively induces others to infringe that patent", and therefore granted Prodigy's motion for summary judgement". This has been a bruising encounter for BT in the US Courts. It has been suggested BT stood little chance of success in this action and the decision would appear to bear that out. Given the potential rewards of a successful action, however, who would begrudge them their right to try? Bill Downey, Partner
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