Appeal No. 2006-0672
Application No. 10/112,176
use in a downhole tool is taught or suggested (Brief, page 9).
Appellants’ arguments are not persuasive. Moss specifically discloses that
ordered PEKKs are “more suitable in manufacturing because of their better melt
processing characteristics” (col. 1, ll. 36-45). Moss also teaches that PEKK films are
useful as dielectrics (col. 4, ll. 54-62) and are preferred for applications requiring higher
temperature resistance, post-casting annealing to achieve higher strength and stiffness,
or greater toughness, the very properties desired by Denninger (Moss, col. 5, ll. 38-49).
Gay, directed to the same PEKKs as Moss (see Moss, col. 2, ll. 49-51), discloses that it
was well known to use PEKK films as “insulation wrapping for electrical conductors”
(col. 1, ll. 59-62).3 Gay further teaches that PEKKs have “good retention of properties
at elevated temperatures, have good solvent stress crack resistance and can be rapidly
molded,” as well as forming completely miscible blends with certain polyetherimides
(col. 3, ll. 5-11).
Appellants argue that Denninger and Moss do not teach or suggest all the
3In the event of continuing or further prosecution of this application, the examiner and
appellants should consider the patentability of the claimed subject matter in view of Angelo,
U.S. Patent No. 3,674,627, issued July 4, 1972, as cited by Gay at col. 1, ll. 59-62.
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