Issued Patents All Time
Showing 1–9 of 9 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 9840874 | Hybrid rolling cone drill bits and methods for manufacturing same | Tjandra Sukendro | 2017-12-12 |
| 9328562 | Rock bit and cutter teeth geometries | Tom Scott Roberts, Adrian Reyes, Robert Morton | 2016-05-03 |
| 9249628 | Hybrid rolling cone drill bits and methods for manufacturing same | Tjandra Sukendro | 2016-02-02 |
| 9140071 | Apparatus and method for retaining inserts of a rolling cone drill bit | Tjandra Sukendro | 2015-09-22 |
| 8733475 | Drill bit with enhanced hydraulics and erosion-shield cutting teeth | Tom Scott Roberts, Craig Ivie, Douglas Caraway | 2014-05-27 |
| 8607899 | Rock bit and cutter teeth geometries | Tom Scott Roberts, Adrian Reyes, Robert Morton | 2013-12-17 |
| 5309382 | Binary shifter | Leilani Tamura | 1994-05-03 |
| 4737926 | Optimally partitioned regenerative carry lookahead adder | Patrick P. Gelsinger | 1988-04-12 |
| 4229743 | Multiple band, multiple resonant frequency antenna | John R. Lewis, Jr. | 1980-10-21 |