Interference No. 102,922
Interference No. 103,088
Gill, with a copy to Dumas, indicating that Pfizer performed a
second handsheet study to reexamine the effect of Hercules
products implementing the suggestions offered by Hercules.
Pfizer found that paper containing PCC treated with Hercules
cationic dispersants, X20870-36 and X20870-37 showed improved
sizing. At this time, Pfizer still did not know the content
of the Hercules' cationic dispersants sent them as part of the
agreed upon exchange. When Gill, Dumas, and corroborator
Fredericks again met on November 10, 1989, Gill showed
Hercules some data from treating PCC with HerconŽ 85 and M-
1170 and that the data showed very different results. Both
Dumas and Hosker testified that M-1170 and HerconŽ85 were the
same product and, hence, the results were inconsistent and
should have been essentially the same. At the November,
1989, Dumas told Gill
the content of the Hercules' cationic dispersant sent to them.
And Gill acknowledges that Dumas revealed to him the content
of the Hercules cationic polymeric material. DR 135.
Opinion
In the ‘922 interference, both Gill and Dumas consider
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