DW

David L. Walker

ZP Zenith Products: 88 patents #1 of 42Top 3%
BC Bridgestone Sports Co.: 3 patents #96 of 224Top 45%
UC Uniroyal Chemical Company: 2 patents #91 of 230Top 40%
ZE Zenith Electronics: 2 patents #142 of 411Top 35%
UL Uniroyal Chemical Ltd./Ltee: 2 patents #12 of 34Top 40%
SC Sun-Maid Growers Of California: 2 patents #2 of 14Top 15%
ZR Zenith Radio: 1 patents #81 of 184Top 45%
📍 Portland, OR: #107 of 9,213 inventorsTop 2%
🗺 Oregon: #185 of 28,073 inventorsTop 1%
Overall (All Time): #12,232 of 4,157,543Top 1%
109
Patents All Time

Issued Patents All Time

Showing 101–109 of 109 patents

Patent #TitleCo-InventorsDate
5557883 Trellising system for producing dried-on-the-vine raisins 1996-09-24
5545655 Substituted oxathiolanes Barry T. Friedlander, Robert A. Davis, Allen R. Blem 1996-08-13
5179314 Non-sequential raster scanning apparatus and method Steven Spears 1993-01-12
5150957 Real time registration weave correction system Steven Spears 1992-09-29
5039332 Substituted oxathiolanes Barry T. Friedlander, Robert A. Davis, Allen R. Blem 1991-08-13
4987481 Video noise reduction system Steven Spears 1991-01-22
4712237 Method and apparatus for unscrambling sync-suppressed television signals 1987-12-08
4703354 Non-linear sync signal processing circuit Frederick H. Auld, Jr. 1987-10-27
4554581 STV Decoder with improved data signal recognition capability Michael L. Tentler, Wayne E. Bretl, Gregory A. Williams 1985-11-19