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Date of decision
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22 April 1999
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Case number
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T 0644/97
- 3.3.3
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Application number
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88908377.0
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Title of the application
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Process for preparing crystallized aromatic polycarbonate and
crystallized aromatic polycarbonate obtained by the process
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Applicant name
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Asahi Kasei Kogyo Kabushiki Kaisha
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Opponent name
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Bayer AG, Leverkusen Konzernverwaltung RP Patente Konzern
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Keywords
Admissibility of appeal (yes)
Inventive step (yes) - different starting point in prior art -
formulation of technical problem - solution non-obvious
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Catchwords:
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The technical problem arising from a "closest state of the art"
disclosure which is irrelevant to the claimed subject-matter in
the sense that it does not mention a problem that is at least
related to that derivable from the patent specification has a
form such that its solution can practically never be obvious,
because any attempt by the skilled person to establish a chain
of considerations leading in an obvious way to the claimed
subject-matter gets stuck at the start. It follows that the
respective claimed subject-matter is non-obvious in the light of
such art.
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