Issued Patents All Time
Showing 25 most recent of 44 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 12128708 | Bell lock safety restraint for wheel assemblies | — | 2024-10-29 |
| 11156080 | Monitoring system with an instrumented surface top sub | Thomas M. Bryant, John Martin Clegg | 2021-10-26 |
| 11084324 | Safety restraint for break-away wheel assemblies | — | 2021-08-10 |
| 11021910 | Sealing assembly and related methods | Serhiy Korostensky | 2021-06-01 |
| 10987973 | Safety restraint for break-away wheel assemblies | — | 2021-04-27 |
| 10927605 | System, apparatus and method for guiding a drill bit based on forces applied to a drill bit | — | 2021-02-23 |
| 10669843 | Dual rotor pulser for transmitting information in a drilling system | — | 2020-06-02 |
| 10416024 | System and method for monitoring and controlling underground drilling | Mark Ellsworth Wassell | 2019-09-17 |
| 10337250 | System, apparatus and method for guiding a drill bit based on forces applied to a drill bit, and drilling methods related to same | — | 2019-07-02 |
| 10323511 | Dual rotor pulser for transmitting information in a drilling system | — | 2019-06-18 |
| 10047602 | Antennas for a drilling system and method of making same | — | 2018-08-14 |
| 9696198 | System and method for monitoring and controlling underground drilling | Mark Ellsworth Wassell | 2017-07-04 |
| 9458679 | Apparatus and method for damping vibration in a drill string | Mark Hutchinson, Dirk Bosman, Mark Ellsworth Wassell, Carl Allison Perry, Martin E. Cobern | 2016-10-04 |
| 8944190 | System and method for damping vibration in a drill string | Mark Ellsworth Wassell, Daniel E. Burgess, Carl Allison Perry | 2015-02-03 |
| 8684108 | System and method for monitoring and controlling underground drilling | Mark Ellsworth Wassell | 2014-04-01 |
| 8662205 | System and method for damping vibration in a drill string | Mark Ellsworth Wassell, Daniel E. Burgess, Carl Allison Perry | 2014-03-04 |
| 8640791 | System and method for monitoring and controlling underground drilling | Mark Ellsworth Wassell | 2014-02-04 |
| 8453764 | System and method for monitoring and controlling underground drilling | Mark Ellsworth Wassell | 2013-06-04 |
| 8240401 | System and method for damping vibration in a drill string | Mark Ellsworth Wassell, Daniel E. Burgess, Carl Allison Perry | 2012-08-14 |
| 7997357 | System and method for damping vibration in a drill string | Mark Ellsworth Wassell, Daniel E. Burgess, Carl Allison Perry | 2011-08-16 |
| 7762356 | Rotary steerable motor system for underground drilling | Carl Allison Perry, Mark Ellsworth Wassell, Jason R. Barbely, Daniel E. Burgess, Martin E. Cobern | 2010-07-27 |
| 7389830 | Rotary steerable motor system for underground drilling | Carl Allison Perry, Mark Ellsworth Wassell, Jason R. Barbely, Daniel E. Burgess, Martin E. Cobern | 2008-06-24 |
| 7377339 | System and method for damping vibration in a drill string | Mark Ellsworth Wassell, Daniel E. Burgess, Carl Allison Perry | 2008-05-27 |
| 7327634 | Rotary pulser for transmitting information to the surface from a drill string down hole in a well | Carl Allison Perry, Daniel E. Burgess | 2008-02-05 |
| 7249968 | Electrical connections for harsh conditions | Douglas J. Fish, Carl Allison Perry, Mark Ellsworth Wassell | 2007-07-31 |