Issued Patents 1989
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4817962 | Universal tubular connection having a variable metal-to-metal seal width corresponding to material yield strength | Keith C. Mott, Gary E. Kirsch, H. Paul Barringer | 1989-04-04 |
| 4795200 | Lengthened tubular pin member nose for improving sealing integrity and bearing forces | — | 1989-01-03 |