Issued Patents All Time
Showing 176–178 of 178 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 6446720 | Methods of downhole testing subterranean formations and associated apparatus therefor | Paul D. Ringgenberg, Mark A. Proett, Michael L. Hinz, Gregory N. Gilbert, Harold W. Nivens +1 more | 2002-09-10 |
| 6378364 | Downhole densitometer | Mark A. Proett, Bruce H. Storm, Jr., James R. Birchak, Thomas Ritter | 2002-04-30 |
| 6325146 | Methods of downhole testing subterranean formations and associated apparatus therefor | Paul D. Ringgenberg, Mark A. Proett, Michael L. Hinz, Gregory N. Gilbert, Harold W. Nivens +1 more | 2001-12-04 |