Issued Patents All Time
Showing 1–13 of 13 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 8157604 | Electrical linear motor for propulsion of marine vessel | — | 2012-04-17 |
| 7604520 | Electrical linear motor for marine propulsion | — | 2009-10-20 |
| 6422568 | Mechanical seal assembly | — | 2002-07-23 |
| 6299174 | Mechanical seal assembly | — | 2001-10-09 |
| 5828143 | Magnetostrictive method and apparatus for propelling an object | — | 1998-10-27 |
| 5615172 | Autonomous data transmission apparatus | — | 1997-03-25 |
| 5232656 | Fast-acting nuclear reactor control device | Phillip B. West | 1993-08-03 |
| 5197040 | Borehole data transmission apparatus | — | 1993-03-23 |
| 4953595 | Mud pulse valve and method of valving in a mud flow for sharper rise and fall times, faster data pulse rates, and longer lifetime of the mud pulse valve | — | 1990-09-04 |
| 4874358 | Dual axis continuous flow centrifugation apparatus and method | Owen D. Brimhall, Stephen C. Peterson, Dilip N. Ghosh Roy | 1989-10-17 |
| 4771408 | Universal mud pulse telemetry system | — | 1988-09-13 |
| 4734892 | Method and tool for logging-while-drilling | — | 1988-03-29 |
| 4703461 | Universal mud pulse telemetry system | — | 1987-10-27 |