Appeal No. 1999-0243 Application 08/434,457 but teaches providing both the cylinder information and the actual physical sector number within the sector. The Examiner then points to Hikita's disclosure of a circuit 15 for converting a physical sector number into a logical sector number, and asserts that it would have been obvious to one of ordinary skill in this art to have applied Hikita's teaching to Greenberg in order to enable a computer to access a disk solely on the basis of logical addresses. In response to Appellants' argument that neither Greenberg nor Hikita teaches or suggests generating logical sectors from physical sectors, the Examiner asserts that Hikita clearly teaches physical to logic sector conversion, and element 15 of Hikita is marked as a physical-logical sector number conversion circuit. "Obviousness may not be established using hindsight or in view of the teachings or suggestions of the inventor." Para- Ordnance, 73 F.3d 1085, 1087, 37 USPQ2d 1237, 1239, citing W. L. Gore & Assocs., 721 F.2d 1551, 1553, 220 USPQ 311, 312-13. In addition, our reviewing court requires the PTO to make specific findings on a suggestion to combine prior art references. In re Dembiczak, 175 F.3d 994, 1000-01, 50 USPQ2d 1614, 1617-19 (Fed. 5Page: Previous 1 2 3 4 5 6 7 8 9 10 NextLast modified: November 3, 2007