Issued Patents 1989
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4871019 | Wellbore fluid sampling apparatus | Weldon H. Barber, Kavin J. Morris | 1989-10-03 |
| 4830104 | Actuation indicator for downhole tools | Dennis R. Wood | 1989-05-16 |
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4871019 | Wellbore fluid sampling apparatus | Weldon H. Barber, Kavin J. Morris | 1989-10-03 |
| 4830104 | Actuation indicator for downhole tools | Dennis R. Wood | 1989-05-16 |