Issued Patents All Time
Showing 26–49 of 49 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 6880634 | Coiled tubing acoustic telemetry system and method | Vimal V. Shah, Donald G. Kyle, Hampton Fowler, Jr., Leonard R. Case | 2005-04-19 |
| 6847034 | Downhole sensing with fiber in exterior annulus | Vimal V. Shah, Paul F. Rodney, Neal G. Skinner | 2005-01-25 |
| 6819260 | Synchronous CDMA telemetry system for use in a wellbore | Roger L. Schultz | 2004-11-16 |
| 6781520 | Motion sensor for noise cancellation in borehole electromagnetic telemetry system | Harrison C. Smith, Paul F. Rodney | 2004-08-24 |
| 6781521 | Filters for canceling multiple noise sources in borehole electromagnetic telemetry system | Paul F. Rodney, Harrison C. Smith | 2004-08-24 |
| 6657551 | Downhole telemetry system having discrete multi-tone modulation and dynamic bandwidth allocation | Bruce S. Huckaba, Geoff Nightingale, Carl Dodge, Myrick L. Monroe | 2003-12-02 |
| 6657597 | Directional signal and noise sensors for borehole electromagnetic telemetry system | Paul F. Rodney, Harrison C. Smith | 2003-12-02 |
| 6583729 | High data rate acoustic telemetry system using multipulse block signaling with a minimum distance receiver | Vimal V. Shah, Donald G. Kyle | 2003-06-24 |
| 6580751 | High speed downhole communications network having point to multi-point orthogonal frequency division multiplexing | John W. Minear | 2003-06-17 |
| 6400646 | Method for compensating for remote clock offset | Vimal V. Shah, John W. Minear, Robert L. Malloy, James R. Birchak, Carl A. Robbins | 2002-06-04 |
| 6370082 | Acoustic telemetry system with drilling noise cancellation | Vimal V. Shah, John W. Minear | 2002-04-09 |
| 6355928 | Fiber optic tomographic imaging of borehole fluids | Neal G. Skinner, Gerald Gardner, Margaret C. Waid, John W. Minear | 2002-03-12 |
| 6320820 | High data rate acoustic telemetry system | Vimal V. Shah | 2001-11-20 |
| 6229453 | Method to transmit downhole video up standard wireline cable using digital data compression techniques | Steven D. Maddox | 2001-05-08 |
| 6172614 | Method and apparatus for remote actuation of a downhole device using a resonant chamber | Clark E. Robison, John W. Minear | 2001-01-09 |
| 6137747 | Single point contact acoustic transmitter | Vimal V. Shah, James R. Birchak, John W. Minear, Donald G. Kyle, John Dennis +3 more | 2000-10-24 |
| 5787052 | Snap action rotary pulser | Wilson Chung-Ling Chin | 1998-07-28 |
| 5586084 | Mud operated pulser | Charles D. Barron | 1996-12-17 |
| 5515336 | MWD surface signal detector having bypass loop acoustic detection means | Wilson C. Chin, Margaret C. Waid | 1996-05-07 |
| 5490121 | Nonlinear equalizer for measurement while drilling telemetry system | G. A. Merchant | 1996-02-06 |
| 5387907 | High data rate wireline telemetry system | Kenneth R. Goodman, Robert D. Puckett | 1995-02-07 |
| 5365229 | Adaptive telemetry system for hostile environment well logging | Kenneth R. Goodman | 1994-11-15 |
| 5229765 | SP noise cancellation technique | — | 1993-07-20 |
| 5010333 | Advanced digital telemetry system for monocable transmission featuring multilevel correlative coding and adaptive transversal filter equalizer | Kenneth R. Goodman, Robert D. Puckett, Ricky L. Draehn | 1991-04-23 |