Issued Patents All Time
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5830312 | Butt fusion apparatus with clamping jaws for clamping pipe to be fused without interference between the clamps and the pipe | Jack Lee Workman, Gary Wayne Gunno | 1998-11-03 |
| 5743992 | Butt fusion apparatus with constant pressure accumulator | Jack Lee Workman, Gary Wayne Gunno | 1998-04-28 |