Issued Patents All Time
Showing 1–25 of 45 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 11965408 | Magnetic borehole surveying method and apparatus | Mariano Garcia | 2024-04-23 |
| 11299979 | Magnetic distance and direction measurements from a first borehole to a second borehole | Rahn Pitzer, David B. Mohler, Mariano Garcia | 2022-04-12 |
| 10995608 | System for drilling parallel wells for SAGD applications | — | 2021-05-04 |
| 10316642 | Tool face orientation system for drilling boreholes | — | 2019-06-11 |
| 10301925 | Tracking system for drilling boreholes | Justin Armstrong, Ross Fleming | 2019-05-28 |
| 10132157 | System for drilling parallel wells for SAGD applications | — | 2018-11-20 |
| 9759060 | Proximity detection system for deep wells | — | 2017-09-12 |
| 8991519 | Proximity detection system for deep wells | — | 2015-03-31 |
| 8810247 | Electromagnetic orientation system for deep wells | — | 2014-08-19 |
| 8322462 | Proximity detection system for deep wells | — | 2012-12-04 |
| 8113298 | Wireline communication system for deep wells | — | 2012-02-14 |
| 7687950 | Drillstring alternator | — | 2010-03-30 |
| 7568532 | Electromagnetically determining the relative location of a drill bit using a solenoid source installed on a steel casing | Rahn Pitzer | 2009-08-04 |
| 7510030 | Elongated cross coil assembly for use in borehole location determination | Herbert J. Susmann | 2009-03-31 |
| 7219749 | Single solenoid guide system | — | 2007-05-22 |
| 6939186 | Rolling heel, forward facing rowing system | — | 2005-09-06 |
| 6814163 | Two solenoid guide system for horizontal boreholes | — | 2004-11-09 |
| 6736222 | Relative drill bit direction measurement | Rahn Pitzer, Anthony G. Nekut, Jr. | 2004-05-18 |
| 6626252 | Two solenoid guide system for horizontal boreholes | — | 2003-09-30 |
| 6466020 | Electromagnetic borehole surveying method | Rahn Pitzer, Herbert J. Susmann | 2002-10-15 |
| 6234259 | Multiple cam directional controller for steerable rotary drill | Rahn Pitzer | 2001-05-22 |
| RE36569 | Method and apparatus for measuring distance and direction by movable magnetic field source | — | 2000-02-15 |
| 5923170 | Method for near field electromagnetic proximity determination for guidance of a borehole drill | — | 1999-07-13 |
| 5725059 | Method and apparatus for producing parallel boreholes | J. Gaenger, H. J. Bayer | 1998-03-10 |
| 5676212 | Downhole electrode for well guidance system | — | 1997-10-14 |