Interference No. 103,272
57-133149 (OX 13), which is cited in the involved Heuschen application at page 5, line 23,
and in the involved Okamoto patent, at column 2, lines 25 to 33. Thus, OX 13 and 14 will
be referred to collectively as the Japanese reference. The Japanese reference discloses
similar polymers to those claimed by the parties, but does not disclose the particular
Kasha Index values recited in the Heuschen claims or the particular molecular weight
ranges recited in the Okamoto claims. Thus, the Japanese reference would not have
anticipated any of the parties' claims.
Nor, in our view, would the Japanese reference have rendered prima facie
obvious any of the involved Heuschen or Okamoto claims, since the Japanese
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