Issued Patents All Time
Showing 1–5 of 5 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 7313853 | Tap process for hard workpieces | Ralph W. Hughes, Jr. | 2008-01-01 |
| 7305747 | Tap process for hard workpieces | Ralph W. Hughes, Jr. | 2007-12-11 |
| 7293338 | Tap process for hard workpieces | Ralph W. Hughes, Jr. | 2007-11-13 |
| 7281307 | Tap process for hard workpieces | Ralph W. Hughes, Jr. | 2007-10-16 |
| 7143490 | Tap process for hard workpieces | Ralph W. Hughes, Jr. | 2006-12-05 |