Issued Patents All Time
Showing 1–3 of 3 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5618137 | Tapping assembly | Charles C. Mattern | 1997-04-08 |
| 5507604 | Tapping assembly | Charles C. Mattern | 1996-04-16 |
| 5340244 | Tapping assembly | Charles C. Mattern | 1994-08-23 |
Showing 1–3 of 3 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5618137 | Tapping assembly | Charles C. Mattern | 1997-04-08 |
| 5507604 | Tapping assembly | Charles C. Mattern | 1996-04-16 |
| 5340244 | Tapping assembly | Charles C. Mattern | 1994-08-23 |