Interference No. 102,922 Interference No. 103,088 Techentin’s answer do not establish that Techentin did not have original knowledge as to alkyl ketene dimer formula. In our view, the record indicates that Techentin, an employee of Hercules since 1956 in a variety of positions, had personal knowledge of alkyl ketene dimer and its structure as evidenced by Techentin's testimony that Aquapel® 364 was a flake dimer, alkyl ketene dimer which Hercules began making in 1958 and that it had not changed significantly since that time; that when asked if he could draw the formula, his initial response was “If I can have a pen.” and “Can I reference anything?”; that it had been a long time since he drew the structure for a seminar and that the formula he drew was of a general nature with the R’s being residues of fatty acids having chain lengths of C8-C30. DR 298-301. Furthermore, the interference record as a whole clearly establishes the structural formula for the alkyl ketene dimer and confirms the controverted testimony of Techentin. See discussion, infra. V. The Dumas case for priority 15Page: Previous 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 NextLast modified: November 3, 2007