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Date of decision 25 April 1995
Case number T 0906/91 - 3.3.4
Application number 83303822.7
IPC C12P1/00
Proceedings Language EN
Title of the application Hybridoma cell lines and monoclonal antibodies to theophylline
Applicant name E.I. DU PONT DE NEMOURS AND COMPANY
Opponent name Behringwerke Aktiengesellschaft
Boehringer Mannhein GmbH Patentabteilung
Headnote
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Articles and Rules EPC . Art 56
Keywords
Inventive step -no; obvious to replace antisera by monoclonal antibodies with reasonable expectation of improved specificity; no difficulties overcome in doing so.
Cited Decisions T 0499/88
Catchwords:
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