Issued Patents All Time
Showing 1–16 of 16 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 8410947 | Leak detection system for pressurized pipeline | John G. Graves | 2013-04-02 |
| 5984269 | Rotatable valve assembly | John Tomasko, Stephen P. Farwell | 1999-11-16 |
| 5607140 | Rotatable valve assembly | John Tomasko, Stephen P. Farwell | 1997-03-04 |
| 5368180 | Perforated rupture disk assembly | Stephen P. Farwell, John Tomasko | 1994-11-29 |
| 5167337 | Scored reverse buckling rupture disk assembly | Jim E. Ellis, Arnold L. Mundt, John L. Tyler | 1992-12-01 |
| 5067530 | Waste oil collection and disposal system | — | 1991-11-26 |
| 5036632 | Pressure relief panel assembly | Mitchel L. Rooker, E. Bernel Sawyer | 1991-08-06 |
| 5005722 | Fail safe rupture disk assembly | Jim E. Ellis | 1991-04-09 |
| 4750510 | Temperature responsive pressure relief apparatus and method | — | 1988-06-14 |
| 4706698 | Temperature responsive pressure relief apparatus and method | — | 1987-11-17 |
| 4657157 | Pressure relief method and rupture disk assembly | — | 1987-04-14 |
| 4553559 | Rupturable pressure relief assembly | — | 1985-11-19 |
| 4549565 | Reclosing rupture disk assembly | — | 1985-10-29 |
| 4441350 | Scored reverse buckling rupture disk manufacturing method | Jerome D. Allen, Loren E. Wood | 1984-04-10 |
| 4236648 | Safety pressure relief apparatus | Loren E. Wood, Calvin C. Forsythe, John L. Strelow, Jerome D. Allen, Miner E. Clift | 1980-12-02 |
| 4211334 | Safety pressure relief apparatus | John E. Witten, Loren E. Wood | 1980-07-08 |