Issued Patents All Time
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5305184 | Method and apparatus for immersion cooling or an electronic board | Robert J. Bellar, Sung Jin Kim, Alan L. Murphy | 1994-04-19 |
| 5204809 | H-driver DC-to-DC converter utilizing mutual inductance | — | 1993-04-20 |
| 4794581 | Lens support system enabling focussing and tracking motions employing a unitary lens holder | — | 1988-12-27 |
| 4297737 | Sector servo with sync marks | John H. Christian | 1981-10-27 |
| 4195320 | Record track identification and following | — | 1980-03-25 |