Issued Patents All Time
Showing 1–16 of 16 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 7418324 | Active suspension for a marine platform | David E. Simon, John M. Holford, Francis (Frank) M. Napoletano, Jr. | 2008-08-26 |
| 7113384 | Dynamic degaussing system | Christopher E. Ruckman, John M. Holford | 2006-09-26 |
| 7039512 | Active suspension for a marine platform | David E. Simon | 2006-05-02 |
| 7013832 | Arrangement for damping of structural resonance | David C Sexton, Frederick A Johnson | 2006-03-21 |
| 6487061 | Electromagnet support system | Christopher E. Ruckman | 2002-11-26 |
| 6462927 | Apparatus and method for spatially coupling an electro-magnet to a support armature | — | 2002-10-08 |
| 6127757 | Levitation device | — | 2000-10-03 |
| 6116179 | Mounting of machinery within a vessel | Frederick A Johnson | 2000-09-12 |
| 5609230 | Vibration cancellation device | — | 1997-03-11 |
| 5121702 | Underwater vehicle | Frederick A Johnson, Christopher F. King | 1992-06-16 |
| 5022628 | Mounting for machinery | Frederick A Johnson | 1991-06-11 |
| 4669122 | Damping for directional sound cancellation | — | 1987-05-26 |
| 4637048 | Methods and apparatus for reducing noise by cancellation | — | 1987-01-13 |
| 4596033 | Attenuation of sound waves | — | 1986-06-17 |
| 4589133 | Attenuation of sound waves | — | 1986-05-13 |
| 4423289 | Signal processing systems | — | 1983-12-27 |