Issued Patents All Time
Showing 1–8 of 8 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 6442826 | Method for manufacturing a flush/semi-flush threaded connection | John J. Staudt | 2002-09-03 |
| 5423579 | Tubular coupling with metal to metal seal | Thomas L. Blose, Donald J. Ortloff | 1995-06-13 |
| RE34467 | Tubular connection | — | 1993-12-07 |
| 4917409 | Tubular connection | — | 1990-04-17 |
| 4712815 | Metal-to-metal wedge thread coupling connector | — | 1987-12-15 |
| 4703954 | Threaded pipe connection having wedge threads | Donald J. Ortloff | 1987-11-03 |
| 4703959 | Threaded pipe connection with compressible seal ring | Keith C. Mott | 1987-11-03 |
| 4662659 | Tubular joint with trapped mid-joint metal-to-metal seal having unequal tapers | Thomas L. Blose, K. Darrel Chelette, Donald J. Ortloff | 1987-05-05 |