Issued Patents 1989
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4842355 | Multichannel optical rotary joint for well logging usage | Darren E. Smith | 1989-06-27 |
| 4808838 | Collimated thermal neutron porosity tool | — | 1989-02-28 |
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4842355 | Multichannel optical rotary joint for well logging usage | Darren E. Smith | 1989-06-27 |
| 4808838 | Collimated thermal neutron porosity tool | — | 1989-02-28 |