Issued Patents All Time
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5601225 | Welding apparatus | Robert Jeffery Lowery, Robert L. Knipschield | 1997-02-11 |
| 5435478 | Welding apparatus and method | Robert Jeffery Lowery, Robert L. Knipschield | 1995-07-25 |