Interference No. 104,693 Preputnick v. Provencher Preputnick might have meant U.S. Patent No. 4,729,744 (Exhibit 2017), but we are not reasonably certain. U.S. Patent No. 4,846,727 is also listed as evidence relied upon by Preputnik. Both patent numbers substantially overlap '4,729,727." Furthermore, Preputnick mis-identified U.S. Patent No. 4,729,744 as being issued to Glover et al. when none of the named inventors in that patent is named Glover. U.S. Patent No. 4,846,727 (Exhibit 2016) is issued to Glover et al., but Preputnick mis-identified that exhibit as Patent No. 4,846,747 in the section of the motion entitled 'Evidence Relied Upon" and also mis-identified it as a patent to Bet et al., the inventors of U.S. Patent No. 4,729,744. The situation is confusing. Central to the conclusion of obviousness is a finding of differences between the claimed invention and the prior art reference on which the obviousness conclusion is based. See, Graham v. John Deere Co., 383 U.S. 1, 17-18, 148 USPQ 459, 46V (1966). The question to be answered is whether despite such differences, the claimed invention as a whole still would have been obvious to one with ordinary skill in the art. The established differences serve as the focus of the obviousness analysis. If, in ex parte prosecution, an examiner rejects an applicant's claim for obviousness without first establishing and focusing on differences between the claimed invention and the - 25 -Page: Previous 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 NextLast modified: November 3, 2007