Issued Patents All Time
Showing 1–3 of 3 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 6418611 | Progressive die machine | Wade R. Pennington, Dennis M. Willyard, Jeffrey A. Lawrence | 2002-07-16 |
| 6389671 | Progressive die machine and method | Wade R. Pennington, Dennis M. Willyard, Jeffrey A. Lawrence | 2002-05-21 |
| 6006563 | Progressive die machine and method | Guangyu Zhang, Merle L. Staup, Dennis M. Willyard, Jeffrey A. Lawrence | 1999-12-28 |