Issued Patents All Time
Showing 1–4 of 4 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 6123606 | Method and apparatus for grinding | Christopher Hill, Charles A. Ray | 2000-09-26 |
| 5261745 | Mixing apparatus with frusto-conically shaped impeller for mixing a liquid and a particulate solid | — | 1993-11-16 |
| 4992639 | Combined EDM and ultrasonic drilling | Mohamed F. El-Menshawy | 1991-02-12 |
| 4683585 | Telephone hooking post and assembly | Ken T. Huang | 1987-07-28 |