Issued Patents All Time
Showing 1–6 of 6 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5051041 | Multiple-choke apparatus for transporting and metering particulate material | — | 1991-09-24 |
| 4988239 | Multiple-choke apparatus for transporting and metering particulate material | — | 1991-01-29 |
| 4516674 | Method and apparatus for conveying and metering solid material | — | 1985-05-14 |
| 4361333 | Retort seal mechanism with integral bearings | — | 1982-11-30 |
| 4353558 | Hydrostatic retort seal | — | 1982-10-12 |
| 4200052 | Systems for controlling the position of a moored floating vessel | Sinclair Cunningham, Douglas Jackson | 1980-04-29 |