Appeal No. 96-0499 Application 07/891,671 459, 467 (CCPA 1966), and to provide a reason why one having ordinary skill in the pertinent art would have been led to modify the prior art or to combine prior art references to arrive at the claimed invention. Such reason must stem from some teaching, suggestion or implication in the prior art as a whole or knowledge generally available to one having ordinary skill in the art. Uniroyal, Inc. v. Rudkin-Wiley Corp., 837 F.2d 1044, 1051, 5 USPQ2d 1434, 1438 (Fed. Cir.), cert. denied, 488 U.S. 825 (1988); Ashland Oil, Inc. v. Delta Resins & Refractories, Inc., 776 F.2d 281, 293, 227 USPQ 657, 664 (Fed. Cir. 1985), cert. denied, 475 U.S. 1017 (1986); ACS Hosp. Sys., Inc. v. Montefiore Hosp., 732 F.2d 1572, 1577, 221 USPQ 929, 933 (Fed. Cir. 1984). These showings by the examiner are an essential part of complying with the burden of presenting a prima facie case of obviousness. Note In re Oetiker, 977 F.2d 1443, 1445, 24 USPQ2d 1443, 1444 (Fed. Cir. 1992). With respect to representative, independent claim 13, the examiner cites Riesland as teaching a fluorescent lamp in which a transformer secondary winding acts to reduce the lamp current in the secondary circuit [rejection mailed April 14, 1994]. The examiner notes that Riesland has no teaching about maintaining the filament voltage of the lamps substantially constant, however, the examiner cites Munson as teaching this condition [Id. at pages 2- 3]. The examiner also recognizes that neither of the references teaches the claimed feature of increasing the number of turns of the secondary winding for reducing the current in the secondary winding. The examiner attempts to show that the laws of physics dictate that increasing the number of turns in a secondary winding would have the same effect as the reduction of the power 4Page: Previous 1 2 3 4 5 6 7 8 NextLast modified: November 3, 2007