Issued Patents All Time
Showing 1–5 of 5 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5314209 | Blast joint for snubbing unit | — | 1994-05-24 |
| RE34017 | Increased tensile strength variable diameter protective joint | — | 1992-08-04 |
| 5059043 | Blast joint for snubbing unit | — | 1991-10-22 |
| 4635968 | Method and apparatus for protecting consecutive multiple variable diameter couplings | — | 1987-01-13 |
| 4613165 | Increased tensile strength variable diameter protective joint | — | 1986-09-23 |