Issued Patents 1989
Showing 1–3 of 3 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4857729 | Method of radioactive well logging | Harry D. Smith, Jr. | 1989-08-15 |
| 4825071 | Gamma ray borehole logging method and apparatus having compensation for borehole attenuation effects | Dan M. Arnold | 1989-04-25 |
| 4825073 | Method for determining depth of penetration of radioactive tracers in formation fractures | Harry D. Smith, Jr. | 1989-04-25 |