Issued Patents All Time
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5333684 | Downhole gas separator | James C. Walter, George E. Walter | 1994-08-02 |
| RE33928 | Fire-safe valve actuator | Jerome E. Corneillie, Marion W. Perkins | 1992-05-19 |
| 4671312 | Wireline cutting actuator and valve | — | 1987-06-09 |
| 4619434 | Heat sensitive motor valve jack | David Snyder | 1986-10-28 |
| 4505291 | Heat sensitive fire safe valve energy assist device | — | 1985-03-19 |
| 4421134 | Heat sensitive gate valve | David Snyder | 1983-12-20 |
| 4354425 | Fire-safe valve actuator | Jerome E. Corneillie, Marion W. Perkins | 1982-10-19 |