Issued Patents All Time
Showing 1–13 of 13 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 7165621 | Method for exploitation of gas hydrates | Joseph Ayoub, Terizhandur S. Ramakrishnan | 2007-01-23 |
| 7082993 | Means and method for assessing the geometry of a subterranean fracture during or after a hydraulic fracturing treatment | Joseph Ayoub, Peter Fitzgerald | 2006-08-01 |
| 6845819 | Down hole tool and method | Michael Paul Barrett, Michael Charles Sheppard | 2005-01-25 |
| 6446718 | Down hole tool and method | Michael Paul Barrett, Michael Charles Sheppard | 2002-09-10 |
| 6405798 | Downhole tool and method | Michael Paul Barrett, Michael Charles Sheppard | 2002-06-18 |
| 5952569 | Alarm system for wellbore site | Timothy T. Jervis | 1999-09-14 |
| 5454436 | Method of warning of pipe sticking during drilling operations | Dominic Patrick Joseph McCann, David B. White | 1995-10-03 |
| 5205165 | Method for determining fluid influx or loss in drilling from floating rigs | Dominic Patrick Joseph McCann | 1993-04-27 |
| 5205166 | Method of detecting fluid influxes | Dominic Patrick Joseph McCann, David B. White | 1993-04-27 |
| 4958125 | Method and apparatus for determining characteristics of the movement of a rotating drill string including rotation speed and lateral shocks | Dominic Patrick Joseph McCann, Marc Lesage | 1990-09-18 |
| 4935908 | Finding the direction of a sound | Martyn D. Bull, Philip G. Harper, David M. Treherne | 1990-06-19 |
| 4928521 | Method of determining drill bit wear | — | 1990-05-29 |
| 4581727 | Finding the direction of a sound | Philip G. Harper, Andrew J. Quinn, David M. Treherne | 1986-04-08 |