Issued Patents All Time
Showing 26–39 of 39 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 6624634 | Borehole current correction methods and apparatus | Dean Homan, Thomas D. Barber, Stephen D. Bonner, Brian Clark, Dzevat Omeragic | 2003-09-23 |
| 6573722 | Method and apparatus for cancellation of borehole effects due to a tilted or transverse magnetic dipole | Dean Homan, Thomas D. Barber, Stephen D. Bonner, Brian Clark, Dzevat Omeragic | 2003-06-03 |
| 6566881 | Shielding method and apparatus using transverse slots | Dzevat Omeragic, Jean Seydoux | 2003-05-20 |
| 6557794 | Coil shielding method for selective attenuation of an electromagnetic energy field component | Dean Homan, Dzevat Omeragic, Stephen D. Bonner, Brian Clark, Scott S. Chesser +1 more | 2003-05-06 |
| 6380744 | Shielding apparatus for selective attenuation of an electromagnetic energy field component | Brian Clark, Dean Homan, Dzevat Omeragic, Stephen D. Bonner, Scott S. Chesser +1 more | 2002-04-30 |
| 6373254 | Method and apparatus for controlling the effect of contact impedance on a galvanic tool in a logging-while-drilling application | Dominique Dion, Mark Frey, James Stephen Hall, Qiming Li, Mark A. Fredette | 2002-04-16 |
| 6351127 | Shielding method and apparatus for selective attenuation of an electromagnetic energy field component | Dean Homan, Dzevat Omeragic, Stephen D. Bonner, Brian Clark, Scott S. Chesser +1 more | 2002-02-26 |
| 6304086 | Method and apparatus for evaluating the resistivity of formations with high dip angles or high-contrast thin layers | Gerald N. Minerbo | 2001-10-16 |
| 6297639 | Method and apparatus for directional well logging with a shield having sloped slots | Brian Clark, Dean Homan, Dzevat Omeragic, Stephen D. Bonner, Scott S. Chesser +1 more | 2001-10-02 |
| 5463320 | Apparatus and method for determining the resitivity of underground formations surrounding a borehole | Stephen D. Bonner, Abdullah A. Bagersh, Martin G. Luling, Jacques Jundt | 1995-10-31 |
| 5339037 | Apparatus and method for determining the resistivity of earth formations | Stephen D. Bonner, Abdullah A. Bagersh | 1994-08-16 |
| 5329448 | Method and apparatus for determining horizontal conductivity and vertical conductivity of earth formations | — | 1994-07-12 |
| 5200705 | Dipmeter apparatus and method using transducer array having longitudinally spaced transducers | Brian Clark, Stephen D. Bonner, Jacques Jundt, Martin G. Luling | 1993-04-06 |
| 5157605 | Induction logging method and apparatus including means for combining on-phase and quadrature components of signals received at varying frequencies and including use of multiple receiver means associated with a single transmitter | Richard N. Chandler | 1992-10-20 |