Issued Patents All Time
Showing 1–17 of 17 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5429456 | Apparatus and method for machining seats of gate valves | — | 1995-07-04 |
| 5377235 | Control rod canopy seal positioning and welding system | — | 1994-12-27 |
| 5268941 | Control rod canopy seal positioning and welding system | — | 1993-12-07 |
| 5249209 | Control rod canopy seal positioning and welding system | — | 1993-09-28 |
| 5031816 | Control rod canopy seal positioning and welding system | — | 1991-07-16 |
| 5019325 | Method for removing and installing a control rod drive | Richard Larson, Keith R. Spencer, Don P. Alercia, Thomas J. Litka, Guy J. Ford | 1991-05-28 |
| 4973443 | System for removing and installing a control rod drive | Richard Larson, Keith R. Spencer, Don P. Alercia, Thomas J. Litka, Guy J. Ford | 1990-11-27 |
| 4822238 | Robotic arm | — | 1989-04-18 |
| 4813314 | Multi-function pipe machining apparatus | — | 1989-03-21 |
| 4770074 | Multi-function pipe machining apparatus | — | 1988-09-13 |
| 4758121 | Boring machine | — | 1988-07-19 |
| 4677884 | Portable end prep lathe | Peter K. Olson | 1987-07-07 |
| 4543861 | Portable lathe | Peter K. Olson | 1985-10-01 |
| 4490909 | Travelling pipe cutter | Edward H. Wachs | 1985-01-01 |
| 4454957 | Self-locking sealing plug and installing method | R. Jon Stouky | 1984-06-19 |
| 4411178 | Pipe end preparation machine | Edward H. Wachs | 1983-10-25 |
| 4318391 | Pile-cutting machine and method of cutting multi-sided piles | Edward H. Wachs | 1982-03-09 |