Appeal No. 95-1779
Application 07/683,130
of the coating. Finally, Christie states on page 3 of the
full text of his article (of record and attached hereto):
Enzyme systems which are capable of attacking the
proteinaceous adhesives produced by fouling organisms
have been suggested but are unlikely to be developed due
to cost and to practicability under service conditions.
2. Section 103 in view of Christensen or Hatcher and Trevan
Christensen and Hatcher describe processes for preventing
fouling of marine surfaces which comprise adding an enzyme
to industrial waters (Christensen, col. 1, l. 30-43; Hatcher,
col. 1, l. 64, to col. 2, l. 9). According to the examiner
(Ans., p. 6), “[t]he instant claims differ by reciting that
the enzyme is immobilized to the surface of the structure
exposed to the environment . . . .” The examiner adds (Ans.,
p. 6),
“Trevan discloses that it is conventional in the art to
immobilize enzymes so as to render them more stable and allow
them to be easily recovered and/or re-used (See page 66).”
In view of the combined teaching, the examiner concludes
(Ans., pp. 6-7, bridging para.):
[I]t would have been obvious to one of ordinary skill in
the art to immobilize the enzymes of Christensen . . . or
Hatcher . . . on the surfaces of the process equipment as
suggested by Trevan for the known and expected advantages
- 6 -
Page: Previous 1 2 3 4 5 6 7 8 9 Next
Last modified: November 3, 2007