Issued Patents All Time
Showing 1–19 of 19 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 10808505 | High signal strength mud siren for MWD telemetry | Kamil Iftikhar | 2020-10-20 |
| 10273801 | Methods and systems for downhole sensing and communications in gas lift wells | Vimal V. Shah, Stewart Blake Brazil, Roderick Mark Lusted | 2019-04-30 |
| 10156127 | High signal strength mud siren for MWD telemetry | Kamil Iftikhar | 2018-12-18 |
| 10145239 | Flow modulator for use in a drilling system | Shadi Moaness Saleh, Stewart Blake Brazil | 2018-12-04 |
| 9850754 | High speed telemetry signal processing | Yihan Jiang | 2017-12-26 |
| 7082078 | Magnetorheological fluid controlled mud pulser | Michael Linley Fripp, Neal G. Skinner | 2006-07-25 |
| 7059179 | Multi-probe pressure transient analysis for determination of horizontal permeability, anisotropy and skin in an earth formation | Mark A. Proett | 2006-06-13 |
| 5969638 | Multiple transducer MWD surface signal processing | — | 1999-10-19 |
| 5831177 | Fluid driven siren flowmeter | Margaret C. Waid, Jimmy Wayne Anders, Mark A. Proett | 1998-11-03 |
| 5740126 | Turbo siren signal generator for measurement while drilling systems | Thomas Ritter | 1998-04-14 |
| 5703286 | Method of formation testing | Mark A. Proett, Chih-Chang Chen | 1997-12-30 |
| 5672819 | Formation evaluation using phase shift periodic pressure pulse testing | Mark A. Proett | 1997-09-30 |
| 5644076 | Wireline formation tester supercharge correction method | Mark A. Proett, Margaret C. Waid | 1997-07-01 |
| 5586083 | Turbo siren signal generator for measurement while drilling systems | Thomas Ritter | 1996-12-17 |
| 5583827 | Measurement-while-drilling system and method | — | 1996-12-10 |
| 5535177 | MWD surface signal detector having enhanced acoustic detection means | Kenneth H. Hamlin | 1996-07-09 |
| 5515336 | MWD surface signal detector having bypass loop acoustic detection means | Wallace R. Gardner, Margaret C. Waid | 1996-05-07 |
| 5459697 | MWD surface signal detector having enhanced acoustic detection means | Kenneth H. Hamlin | 1995-10-17 |
| 4785300 | Pressure pulse generator | Jose A. Trevino | 1988-11-15 |