Issued Patents All Time
Showing 1–4 of 4 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 6578631 | Well logging tool | Michael Charles Spencer | 2003-06-17 |
| 6488085 | Method and apparatus for well logging and well control | Michael Charles Spencer | 2002-12-03 |
| 6419013 | Well logging method & apparatus | Michael Charles Spencer | 2002-07-16 |
| 6311777 | Well logging tool | Michael Charles Spencer | 2001-11-06 |