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EPO rules on amendment of claims that narrow scope can infringe Article 123(2) EPC
Legal Member, Boards of Appeal
European Patent Office
Munich, Germany
Polyionic transition metal catalyst composition—inter partes, Board 3.3.03, T-0097/05, 31 May 2007
During opposition proceedings, the proprietor filed a main request that contained claims that were narrower in scope than the claims as granted. The opposition division revoked the patent and this main request became the main request in the proprietor's appeal. The main request was found by the EPO Board of Appeal to infringe Article 123(2) EPC as the narrower claims changed the meaning of the examples given in the description.
Correspondence: Email: drogers{at}epo.org