Issued Patents All Time
Showing 1–7 of 7 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4312319 | Valve positioner and method of making the same | — | 1982-01-26 |
| 4239181 | Valve positioner and method of making the same | — | 1980-12-16 |
| 4218040 | Valve positioner and method of making same | — | 1980-08-19 |
| 4213233 | Method of making a pilot operated valve positioner | — | 1980-07-22 |
| 4202524 | Valve positioner and method of making the same | — | 1980-05-13 |
| 4185772 | Condition response differential vacuum regulator and method of making the same | — | 1980-01-29 |
| 4181106 | Engine control system and a differential vacuum regulator therefor or the like | — | 1980-01-01 |