CHANCERY DIVISION
PATENTS COURT
Strand, London, WC2A 2LL | ||
B e f o r e :
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IN THE MATTER OF Patent Application No GB 9711337.7 by Leslie Adrian Alfred WOOLARD |
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Mr Daniel Alexander (instructed by Treasury Solicitor for the Comptroller General of Patents)
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Crown Copyright ©
Mr Justice Laddie:
“(1) An invention shall be considered to be new if it does not form part of the state of the art.
(2) The state of the art shall be held to comprise everything made available to the public by means of a written or oral description, by use, or in any other way, before the date of filing of the European patent application.
(3) Additionally, the content of European patent applications as filed, of which the dates of filing are prior to the date referred to in paragraph 2 and which were published under Article 93 on or after that date, shall be considered as comprised in the state of the art.
(4) Paragraph 3 shall be applied only in so far as a Contracting State designated in respect of the later application, was also designated in respect of the earlier application as published.”
“The Chairman then summarised the discussion stressing that the basic idea was that only one patent could be granted for one invention. He pointed out that duplicated patents did exists sometimes. It was not possible for the Offices to be aware of all the possible effects of a patent.”
“… not only that the Crown should not grant the same monopoly twice but also that it is against the public interest to grant a patent for subject matter which has already been publicly disclosed in an earlier application, notwithstanding that the disclosure was not public until after the priority date of the latter application or that no patent may be finally granted on it. In other words, only the first person to take steps to disclose such subject matter to the public by means of a patent application has the right to a monopoly for it.” (paragraph 306)
“The state of the art shall be held to comprise everything made available to the public by means of a written or oral description, by use, or in any other way, before the date of filing of the European patent application together with everything published after the latter date but included within an application for a patent made before that date.”.
“Further it is required that the conflicting application was still pending at its publication date (see J 5/81, OJ 4/1982, 155). If the application has been withdrawn or otherwise lost before the date of publication, but published because the preparations for publication have been completed, the publication has no effect under Art. 54(3), but only under Art. 54(2). Art 54(3) must be interpreted as referring to the publication of a “valid” application, ie a European patent application in existence at its publication date.” (Part C, Chapter IV, paragraph 6.1a)
“There are general considerations which weigh against an obligation on the EPO to publish patent applications discontinued after the key date. Thus, a published European patent application becomes part of the state of the art under Article 54(3), with retrospective effect as from its filing date or priority date, in assessing applications filed after that filing date or priority date but prior to its publication. However, this should only apply if such a “prior publication” is still in existence at the time of publication.” (paragraph 3)