Issued Patents All Time
Showing 51–55 of 55 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 6198643 | System with choke in parallel with A/C power line for load conditioning | — | 2001-03-06 |
| 5793126 | Power control chip with circuitry that isolates switching elements and bond wires for testing | — | 1998-08-11 |
| 5723974 | Monolithic power converter with a power switch as a current sensing element | — | 1998-03-03 |
| 4845628 | Method for optimization of drilling costs | Vivien Johan Cambridge | 1989-07-04 |
| 4794535 | Method for determining economic drill bit utilization | Vivien Johan Cambridge | 1988-12-27 |