Issued Patents All Time
Showing 1–8 of 8 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 10287110 | Compression-loaded plastic rotors | — | 2019-05-14 |
| 5431311 | Rotary airlock valve using a single seat | — | 1995-07-11 |
| 5163656 | Vaneless rotary airlock valve | — | 1992-11-17 |
| 5029517 | Vaneless rotary airlock valve | — | 1991-07-09 |
| 4782741 | Vaneless rotary airlock valve | — | 1988-11-08 |
| 4467701 | Expansible device | — | 1984-08-28 |
| 4295633 | Expansible device | — | 1981-10-20 |
| 4215722 | Rotary flow regulating valve and method | — | 1980-08-05 |