Issued Patents All Time
Showing 1–4 of 4 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 7703537 | Recovery of hydrocarbons | — | 2010-04-27 |
| 7556154 | Drill fluid screening device | Sharon Astleford | 2009-07-07 |
| 5372030 | Non-destructive firmness measuring device | Stanley E. Prussia, Bob Hewlett, Yen-Con Hung | 1994-12-13 |
| 4275431 | High-voltage single-shot circuit-protecting device with fuse-like characteristics and having a chemical operating mechanism | Raymond F. Swoish | 1981-06-23 |