Issued Patents All Time
Showing 1–13 of 13 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 6745018 | Active cancellation of a wireless coupled transmit signal | Ephraim Zehavi, Robert P. Gilmore, James P. K. Gilb | 2004-06-01 |
| 4804194 | Mechanical seal lubrication improvement | Larry A. Hufford, by Benning Wentworth, executor | 1989-02-14 |
| 4744569 | Bellows mechanical seal with inactive diaphragms | by Benning Wentworth, executor | 1988-05-17 |
| RE32646 | Mechanical seals with setting block for use with slurry pumps | — | 1988-04-19 |
| 4722534 | Face seal with automatic face convergence means | — | 1988-02-02 |
| 4703939 | Mechanical seal with radially disposed bias component | — | 1987-11-03 |
| 4653980 | Mechanical seal for pumps and method of fabricating same | — | 1987-03-31 |
| 4557489 | Pressure balanced seal | — | 1985-12-10 |
| 4537385 | Low emission valve | Duncan D. Bragg | 1985-08-27 |
| 4509773 | Pump-mechanical seal construction with axial adjustment means | — | 1985-04-09 |
| 4418919 | Mechanical seals with setting block for use with slurry pumps | — | 1983-12-06 |
| 4197531 | Mechanical seal leakage alarm | — | 1980-04-08 |
| 4183541 | Mechanical seal assembly | — | 1980-01-15 |