Issued Patents All Time
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4975558 | System for control of weld arc development | William E. Lukens, Robert DeNale | 1990-12-04 |
| 4555614 | Weld metal cooling rate indicator system | Richard A. Morris, William E. Lukens | 1985-11-26 |