Appeal No. 1998-1369
Application No. 08/622,620
According to appellants, the invention is directed to
compositions, lubricants, concentrates, and methods of using
the composition of (A) at least one antiwear or extreme
pressure (EP) agent containing sulfur, at least one basic
nitrogen compound, or a mixture thereof; and (B) at least one
hydrocarbyl mercaptan; with the proviso that when (A) is an
organic polysulfide, then the composition further comprises
(C) at least one phosphorus containing antiwear or EP agent,
at least one overbased composition, or mixtures thereof,
wherein (A) is different than (C). See the Brief, page 2.
Appellants state that this combination of components provides
beneficial results in solving problems of seal degradation
caused by lubricants (id.).
Appellants request that the claims be considered
individually (Brief, page 4). However, appellants only
provide specific, substantive reasons for the separate
patentability of claims 1, 4, 9, 16, 17, 19-21, 22, 40, 41,
42-44, 45-46 and 50 (e.g., see the Brief, pages 7-8).
Accordingly, we will discuss each claim to the extent that it
is argued separately by appellants, with all other claims
standing or falling together. See 37 CFR § 1.192(c)(7)(1995).
2
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