Issued Patents All Time
Showing 26–33 of 33 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 6627873 | Down hole gas analyzer method and apparatus | Rocco DiFoggio, Stanislav W. Forgang, Otto N. Fanini, Marcelo F. Civarolo, James C. Hunziker | 2003-09-30 |
| 6484801 | Flexible joint for well logging instruments | James E. Brewer, Paul G. Junghans, James C. Hunziker | 2002-11-26 |
| 6218662 | Downhole carbon dioxide gas analyzer | Rocco DiFoggio, Stanislav Forgang, Otto N. Fanini, James C. Hunziker, Marcelo F. Civarolo | 2001-04-17 |
| 6002643 | Pulser | Daniel Seutter | 1999-12-14 |
| 5934378 | Centralizers for a downhole tool | — | 1999-08-10 |
| 5836388 | Flexible joint for downhole tools | — | 1998-11-17 |
| 5660238 | Switch actuator and flow restrictor pilot valve assembly for measurement while drilling tools | Leon M. Earl | 1997-08-26 |
| 5348091 | Self-adjusting centralizer | Leon M. Earl | 1994-09-20 |