Issued Patents All Time
Showing 1–21 of 21 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 12196079 | Downhole testing tool for subterranean formation testing using a fluid sampling probe assembly | Bruce Mackay, Darren George Gascooke, Matthew Lee | 2025-01-14 |
| 11079211 | Caliper tool and sensor for use in high pressure environments | Edward Harrigan, Michael Simmons, Laurence T. Wisniewski, Gary L. Fickert | 2021-08-03 |
| 10174852 | Hybrid check valve | Bruce Mackay | 2019-01-08 |
| 9891336 | Acoustic isolator for downhole tools | Chung Chang, Gary Kainer, Paul G. Junghans, Arthur Cheng, Randall B. Jones | 2018-02-13 |
| 9874063 | Apparatus and method for storing core samples at high pressure | Bruce Mackay, Michael T. Pelletier, Michael E. Malone, Wade Samec | 2018-01-23 |
| 9664016 | Acoustic artificial lift system for gas production well deliquification | Dennis John Harris, Laurence T. Wisniewski, Randall B. Jones, Georgios L. Varsamis | 2017-05-30 |
| 9322947 | Acoustic receiver assembly for downhole tools | Chung Chang, Randall B. Jones, Gary Kainer, Arthur Cheng | 2016-04-26 |
| 9038766 | Broadband flex joint isolator for acoustic tools | Randall B. Jones | 2015-05-26 |
| 7997380 | Low frequency acoustic attenuator | Gary L. Fickert, Joakim Blanch, Vimal V. Shah, Eugene Linyaev | 2011-08-16 |
| 7535795 | Seismic data acquisition system and method for downhole use | Georgios L. Varsamis, Laurence T. Wisniewski | 2009-05-19 |
| 7347284 | Apparatus and method for hard rock sidewall coring of a borehole | Bruce Mackay, Randall B. Jones, Ken Smith, Wes Ludwig | 2008-03-25 |
| 7116182 | Method and system for downhole clock having compensation | Georgios L. Varsamis, Gary D. Althoff, Laurence T. Wisniewski, Denis P. Schmitt, James H. Dudley | 2006-10-03 |
| 6899197 | Method and apparatus for absorbing acoustic energy | Laurence T. Wisniewski, Georgios L. Varsamis, Gary L. Fickert | 2005-05-31 |
| 6834743 | Wideband isolator for acoustic tools | Randall B. Jones | 2004-12-28 |
| 6564899 | Method and apparatus for absorbing acoustic energy | Laurence T. Wisniewski, Georgios L. Varsamis, Gary L. Fickert | 2003-05-20 |
| 6552962 | Method and apparatus for acoustic logging | Georgios L. Varsamis, Laurence T. Wisniewski | 2003-04-22 |
| 6366531 | Method and apparatus for acoustic logging | Georgios L. Varsamis, Laurence T. Wisniewski | 2002-04-02 |
| 6213250 | Transducer for acoustic logging | Laurence T. Wisniewski, Georgios L. Varsamis | 2001-04-10 |
| 5987385 | Method and apparatus for creating an image of an earth borehole or a well casing | Georgios L. Varsamis, Laurence T. Wisniewski | 1999-11-16 |
| 5692537 | Adjustable hydraulic control valve module | Jacques Maissa | 1997-12-02 |
| 5487433 | Core separator assembly | Bruce Mackay | 1996-01-30 |