Issued Patents All Time
Showing 1–19 of 19 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 7180826 | Measurement while drilling bi-directional pulser operating in a near laminar annular flow channel | David John Kusko | 2007-02-20 |
| 7164267 | Magnetic resonance fluid analysis apparatus and method | Manfred G. Prammer, John C. Bouton, Earle Drack | 2007-01-16 |
| 7063141 | Apparatus for agitated fluid discharge | — | 2006-06-20 |
| 7025143 | Method for removing a deposit using pulsed fluid flow | — | 2006-04-11 |
| 6956372 | System and method for NMR logging with helical polarization | Sergei Knizhnik | 2005-10-18 |
| 6825659 | Method and apparatus for nuclear magnetic resonance measuring while drilling | Manfred G. Prammer, James H. Dudley, George David Goodman, Marian Morys, Dale A. Jones +5 more | 2004-11-30 |
| 6803761 | Temperature compensated magnetic circuit | Manfred G. Prammer | 2004-10-12 |
| 6737864 | Magnetic resonance fluid analysis apparatus and method | Manfred G. Prammer, John C. Bouton | 2004-05-18 |
| 6675914 | Pressure reading tool | — | 2004-01-13 |
| 6583621 | Method and apparatus for nuclear magnetic resonance measuring while drilling | Manfred G. Prammer, James H. Dudley, George David Goodman, Marian Morys, Dale A. Jones +5 more | 2003-06-24 |
| 6577125 | Temperature compensated magnetic field apparatus for NMR measurements | Manfred G. Prammer | 2003-06-10 |
| 6362619 | Method and apparatus for nuclear magnetic resonance measuring while drilling | Manfred G. Prammer, James H. Dudley, George David Goodman, Marian Morys, Dale A. Jones +5 more | 2002-03-26 |
| 6268726 | Method and apparatus for nuclear magnetic resonance measuring while drilling | Manfred G. Prammer, James H. Dudley, George David Goodman, Marian Morys, Dale A. Jones +5 more | 2001-07-31 |
| 6094401 | Inverse vertical seismic profiling using a measurement while drilling tool as a seismic source | David L. Malone | 2000-07-25 |
| 5901113 | Inverse vertical seismic profiling using a measurement while drilling tool as a seismic source | David L. Malone | 1999-05-04 |
| 5517464 | Integrated modulator and turbine-generator for a measurement while drilling tool | Daniel Maurice Lerner | 1996-05-14 |
| 5146433 | Mud pump noise cancellation system and method | Alexandre Kosmala, David Malone | 1992-09-08 |
| 5089989 | Method and apparatus for measuring the quality of a cement to a casing bond | Mathew G. Schmidt, Paul B. Rhodes | 1992-02-18 |
| 4520683 | Pump jack slant wells | Wayne Haverstock, David Krywchuk | 1985-06-04 |