Issued Patents All Time
Showing 1–6 of 6 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5225377 | Method for micromachining semiconductor material | Ralph H. Johnson, Richard Kirkpatrick | 1993-07-06 |
| 5156052 | Ribbed and bossed pressure transducer | Ralph H. Johnson | 1992-10-20 |
| 4614444 | Bearing seal assembly | Raymond J. Monroe, Danny R. Ruppel | 1986-09-30 |
| 4612496 | Linear voltage-to-current converter | — | 1986-09-16 |
| 4602208 | Temperature compensated current switch | — | 1986-07-22 |
| 4596961 | Amplifier for modifying a signal as a function of temperature | — | 1986-06-24 |