Issued Patents All Time
Showing 1–15 of 15 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 10480304 | Analysis of drillstring dynamics using an angular rate sensor | Charles Lee Mauldin, Richard Berns | 2019-11-19 |
| 10100630 | Method and apparatus for communicating incremental depth and/or other useful data of a downhole tool | Charles Lee Mauldin | 2018-10-16 |
| 9366131 | Analyzing toolface velocity to detect detrimental vibration during drilling | Charles Lee Mauldin, Richard Berns | 2016-06-14 |
| 8881844 | Directional drilling control using periodic perturbation of the drill bit | Steven Reid Farley, Michael L. Larronde, Charles Lee Mauldin, Robert Anthony Aiello | 2014-11-11 |
| 7353613 | Directional sensor system comprising a single axis sensor element positioned at multiple controlled orientations | Jian-Qun Wu | 2008-04-08 |
| 6831571 | Logging device data dump probe | — | 2004-12-14 |
| 6825659 | Method and apparatus for nuclear magnetic resonance measuring while drilling | Manfred G. Prammer, James H. Dudley, Peter Masak, George David Goodman, Marian Morys +5 more | 2004-11-30 |
| 6583621 | Method and apparatus for nuclear magnetic resonance measuring while drilling | Manfred G. Prammer, James H. Dudley, Peter Masak, George David Goodman, Marian Morys +5 more | 2003-06-24 |
| 6362619 | Method and apparatus for nuclear magnetic resonance measuring while drilling | Manfred G. Prammer, James H. Dudley, Peter Masak, George David Goodman, Marian Morys +5 more | 2002-03-26 |
| 6268726 | Method and apparatus for nuclear magnetic resonance measuring while drilling | Manfred G. Prammer, James H. Dudley, Peter Masak, George David Goodman, Marian Morys +5 more | 2001-07-31 |
| 6218842 | Multi-frequency electromagnetic wave resistivity tool with improved calibration measurement | Michael S. Bittar | 2001-04-17 |
| 6191561 | Variable output rotary power generator | — | 2001-02-20 |
| 5278507 | Well logging method and apparatus providing multiple depth of investigation using multiple transmitters and single receiver pair having depth of investigation independent of formation resistivity | M. Vikram Rao, Paul F. Rodney | 1994-01-11 |
| 5174765 | Electrical connector having electrically conductive elastomer covered by insulating elastomer | Joseph M. Williams | 1992-12-29 |
| 4940943 | Method and apparatus for optimizing the reception pattern of the antenna of a propagating electromagnetic wave logging tool | Paul F. Rodney | 1990-07-10 |