Issued Patents All Time
Showing 51–58 of 58 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4648815 | Rotary air compressor with thermally responsive oil injection | — | 1987-03-10 |
| 4626003 | Constant motion swivel seal assembly | Neil G. Weber | 1986-12-02 |
| 4568062 | Fire-resistant gate valve | Alfred P. Regitz, Stephen P. Barrett, Charles E. Jennings, Kendall E. Keene, Bashir M. Koleilat +2 more | 1986-02-04 |
| 4553906 | Positive displacement rotary compressors | Edward Boller | 1985-11-19 |
| 4438957 | Constant motion swivel joint | Albert R. Tucker | 1984-03-27 |
| 4405162 | Large-diameter multi-passage swivel joint for high pressure service | — | 1983-09-20 |
| 4401264 | Relief valve | Dean McDonald | 1983-08-30 |
| 4317408 | Wear resistant pump packing cup | — | 1982-03-02 |