Issued Patents All Time
Showing 1–5 of 5 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4900067 | Retrievable packoff with an embedded flexible, metallic band | Martin Jansen | 1990-02-13 |
| 4674576 | Casing hanger running tool | Gregg A. Goris, Raymond Rhodes | 1987-06-23 |
| 4634152 | Casing hanger running tool | — | 1987-01-06 |
| 4611663 | Casing hanger and running apparatus | Gregg A. Goris | 1986-09-16 |
| 4521040 | Combined metal and elastomer seal | Richard W. Slyker | 1985-06-04 |