Issued Patents All Time
Showing 1–8 of 8 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 6297436 | Valve assembly for musical instruments | — | 2001-10-02 |
| 6175222 | Solid-state high voltage linear regulator circuit | James L. Cooper | 2001-01-16 |
| 6066979 | Solid-state high voltage linear regulator circuit | James L. Cooper | 2000-05-23 |
| 6008549 | Solid-state high voltage switch and switching power supply | James L. Cooper | 1999-12-28 |
| 5909362 | Resonant power converter | — | 1999-06-01 |
| 5559658 | Solid-state high voltage crowbar circuit | James L. Cooper | 1996-09-24 |
| 5265789 | Pipe welding counterweight support apparatus | — | 1993-11-30 |
| 5116969 | Ultrarefined arabinogalactan product | Melvin R. Knudson | 1992-05-26 |