Appeal No. 2002-0242
Application 09/112,364
These compounds do not have a styryl group as a substituent of a
diarylamino group, or have a diarylamino group directly attached
to an anthracene group.
The portion of JP ‘569 relied upon by the examiner (answer,
page 4) discloses compounds having anthracene groups and
naphthalene groups connected to each other, and discloses
compounds having three directly connected anthracene groups
(compounds 4, 6, 7, 18, 43, 45-47 and 62-64). The anthracene and
naphthalene groups have styryl substituents, but the styryl
substituents are not substituents of a diarylamino group, and
there is no diarylamino group directly attached to an anthracene
group or a naphthalene group.
The examiner argues that one of ordinary skill in the art
would have reasonably expected that a compound obtained by
combining the structures of the applied references would be
suitable as an electroluminescent compound (answer, pages 5-6).
In the examiner’s view, “[o]ne of ordinary skill in the art,
having knowledge of properties such as ionization potential and
electron affinity of particular chemical structures, could
determine without undue experimentation whether a particular
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