Appeal No. 95-2179
Application No. 07/994,536
second paragraph. Dependent claim 5 does not recite a wound
dressing composition of claim 4 wherein the preservative
component is selected from the group consisting of
methylparaben, propylparaben, imidurea, diazolidnyl urea, and
quaterium 15. Rather, claim 5 recites "[t]he preservative
component of claim 4 wherein said component is selected from
the group consisting of: methylparaben, propylparaben,
imidurea, diazolidnyl urea, and quaterium 15" (emphasis
added). The difference in the preamble "a wound dressing
composition" and "the preservative component" is significant
because it would appear that claim 5 defines only one
component of the overall composition, namely, the preservative
component. The same infirmity applies to claims 6 and 10.
Second, as a matter of claim interpretation, it is
unclear
whether appellants' glycerin polyacrylate reads on Lubrajel.
Based on our review of the specification, it appears that
glycerin polyacrylate is a clathrate derived from glycerin and
acrylic acid polymer (specification, page 6, last paragraph).
Lubrajel is a clathrate formed by the reaction of glycerin and
methylmethacrylate (Georgalas, column 2, lines 52 and 53). It
would appear, therefore, that (1) appellants' glycerin
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