Issued Patents All Time
Showing 1–3 of 3 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4932847 | Apparatus for transmitting pressure from a hydraulic fluid to a material having solid particles suspended in a liquid medium | Gary L. Leonard | 1990-06-12 |
| 4781544 | Apparatus for transmitting pressure from a hydraulic fluid to a material having solid particles suspended in a liquid medium | Gary L. Leonard | 1988-11-01 |
| 4181505 | Method for the work-hardening of diamonds and product thereof | Robert C. De Vries, Robert H. Wentorf, Jr. | 1980-01-01 |