Issued Patents All Time
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 6172334 | Tool kit for shielded metal-arc welding | Roy Harrison Guidry, Jr. | 2001-01-09 |
| 5558575 | Spark plug with platinum tip partially embedded in an electrode | Randolph Kwok-Kin Chiu | 1996-09-24 |