Interference 103,482
Germany P3916553.1, filed May 5, 1989, is evident from the
prior art cited of record in this interference. For example,
Ewen teaches at column 2, lines 39-46, of U.S. Patent
4,522,982 (EE II), patented June 11, 1985:
It will be appreciated by those skilled in the art
that
polypropylene has heretofore been prepared in various
forms.
The forms which are well known to those of skill in the
art
are isotactic, syndiotactic, atactic and isotactic-
atactic-
stereoblock. The latter material was defined by Natta et
al, as consisting of segments of isotactic polypropylene
and
segments of atactic polypropylene within the same chain.
At column 1, line 24, column 2, line 29, of U.S. Patent
4,892,851 (EE I), patented January 9, 1990, and based on an
application filed July 15, 1988, Ewen et al. meticulously
define the terms isotactic and syndiotactic as applied to
polypropylene and compare the characteristics of each to the
other “[a]s disclosed in . . . patent references and as known
in the art” (U.S. Patent 4,892,851, col. 1, l. 43-44). Thus,
Dr. Scott’s view that Dolle’s disclosure inadequately supports
the claimed invention can have merit only if persons skilled
in the art, having knowledge of Randall’s general teaching and
Buschermohle’s published formulas for calculating average
sequence length of isotactic and syndiotactic sequences, still
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