Issued Patents All Time
Showing 1–9 of 9 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 6467818 | Drill collar box | Douglas Snapp | 2002-10-22 |
| 5562312 | Discountinuous plane weld apparatus and method for enhancing fatigue and load properties of subterranean well drill pipe immediate the area of securement of pipe sections | — | 1996-10-08 |
| 5535837 | Helical stress relief groove apparatus and method for subterranean well drill pipe assemblies | — | 1996-07-16 |
| 5361846 | Apparatus and method for enhancing fatigue properties of subterranean well drill pipe immediate the area of securement to a tool joint | John F. Price | 1994-11-08 |
| 5147996 | Tool joint | — | 1992-09-15 |
| 5101906 | Horizontal drilling or completion method | Thomas B. Smith | 1992-04-07 |
| 5010225 | Tool joint and method of hardfacing same | — | 1991-04-23 |
| 4838068 | Method of fabricating threaded connection for pipes | Terrell F. Wafford | 1989-06-13 |
| 4796928 | Threaded connection for pipes and method of fabricating same | Terrell F. Wafford | 1989-01-10 |