Issued Patents All Time
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 6231038 | Two-piece clamp ring for holding semiconductor wafer or other workpiece | Kenneth G. Murphy, Timothy P. Edwards | 2001-05-15 |
| 5603511 | Expandable seal assembly with anti-extrusion backup | Merle L. Bell, Ronney P. Edwards, Weston William Woods | 1997-02-18 |