Appeal No. 2000-0782
Application No. 08/549,322
heavy halogen-containing side products, by reacting hydrogen
fluoride with vinyl chloride in the liquid phase in an organic
solvent consisting of at least one saturated halogen-containing
hydrocarbon (Brief, page 2).
Appellants state that their claims do not stand or fall
together (Brief, page 4). However, appellants do not provide
any reasonably specific, substantive reasons for the separate
patentability of any individual claim except claim 11 (Brief, page
8; Reply Brief, page 12).1 Therefore, pursuant to the provisions
of 37 CFR § 1.192(c)(7)(1997), we select claim 1 from the grouping
of claims and decide this appeal as to the ground of rejection on
the basis of this claim alone, with consideration of claim 11 to
the extent it is separately argued by appellants (see the Answer,
page 2, paragraph (7), and the Brief, page 8). Illustrative claim 1
is reproduced below:
1. A process for the manufacture of 1-chloro-l-fluoroethane,
1,1-difluoroethane or mixtures thereof, with reduced formation of
heavy halogen-containing side products, by reaction between
hydrogen fluoride and vinyl chloride in the liquid phase, wherein
the hydrogen fluoride and the vinyl chloride are introduced into an
1We refer to the Reply Brief dated Aug. 31, 1998, Paper No.
30, entered by the examiner as noted in the Letter dated Sep. 16,
1998, Paper No. 32. The Substitute Reply Brief dated Dec. 28,
1998, Paper No. 33, was refused entry by the examiner and thus is
not part of the record before us in this appeal (see the Letter
dated Jan. 20, 1999, Paper No. 34).
2
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