Issued Patents All Time
Showing 1–3 of 3 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5171968 | Low porosity welding electrode | Robert A. Bishel, David B. O'Donnell | 1992-12-15 |
| 4940882 | Welding flux and welding electrode | — | 1990-07-10 |
| 4639576 | Welding electrode | Lewis E. Shoemaker | 1987-01-27 |