Issued Patents All Time
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 6285026 | Borehole caliper derived from neutron porosity measurements | Michael Evans | 2001-09-04 |
| 5513528 | Logging while drilling method and apparatus for measuring standoff as a function of angular position within a borehole | Jacques M. Holenka, Michael Evans, Philip L. Kurkoski, William R. Sloan | 1996-05-07 |
| 5473158 | Logging while drilling method and apparatus for measuring formation characteristics as a function of angular position within a borehole | Jacques M. Holenka, Michael Evans, Philip L. Kurkoski, William R. Sloan | 1995-12-05 |
| 4916400 | Method for determining characteristics of the interior geometry of a wellbore | Brian Clark | 1990-04-10 |