Issued Patents 1997
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5649603 | Downhole tools having circumferentially spaced rolling elements | Paul Raymond Coey | 1997-07-22 |
| 5606132 | Strain indicator using an optical indicator means | — | 1997-02-25 |
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5649603 | Downhole tools having circumferentially spaced rolling elements | Paul Raymond Coey | 1997-07-22 |
| 5606132 | Strain indicator using an optical indicator means | — | 1997-02-25 |