| 12110785 |
System and method for monitoring motion of downhole tool components of a drilling system |
Allen Kopfstein |
2024-10-08 |
| 10820959 |
Medical device packaging with power source |
Jan Weber, Kathryn A. Johnson, James M. Peck |
2020-11-03 |
| 10478259 |
Medical device packaging with power source |
Jan Weber, Kathryn A. Johnson, James M. Peck |
2019-11-19 |
| 10184301 |
Downhole drilling tools and connection system for same |
Carl Allison Perry, Guy A. Daigle |
2019-01-22 |
| 9976360 |
System and method for damping vibration in a drill string using a magnetorheological damper |
Mark Ellsworth Wassell, Jason R. Barbely, Fred Lamar Thompson |
2018-05-22 |
| 9238965 |
Rotary pulser and method for transmitting information to the surface from a drill string down hole in a well |
— |
2016-01-19 |
| 8944190 |
System and method for damping vibration in a drill string |
Mark Ellsworth Wassell, William Evans Turner, Carl Allison Perry |
2015-02-03 |
| 8662205 |
System and method for damping vibration in a drill string |
Mark Ellsworth Wassell, William Evans Turner, Carl Allison Perry |
2014-03-04 |
| 8240401 |
System and method for damping vibration in a drill string |
Mark Ellsworth Wassell, William Evans Turner, Carl Allison Perry |
2012-08-14 |
| 8087476 |
System and method for damping vibration in a drill string using a magnetorheological damper |
Mark Ellsworth Wassell, Jason R. Barbely |
2012-01-03 |
| 7997357 |
System and method for damping vibration in a drill string |
Mark Ellsworth Wassell, William Evans Turner, Carl Allison Perry |
2011-08-16 |
| 7762356 |
Rotary steerable motor system for underground drilling |
William Evans Turner, Carl Allison Perry, Mark Ellsworth Wassell, Jason R. Barbely, Martin E. Cobern |
2010-07-27 |
| 7389830 |
Rotary steerable motor system for underground drilling |
William Evans Turner, Carl Allison Perry, Mark Ellsworth Wassell, Jason R. Barbely, Martin E. Cobern |
2008-06-24 |
| 7377339 |
System and method for damping vibration in a drill string |
Mark Ellsworth Wassell, William Evans Turner, 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, William Evans Turner |
2008-02-05 |
| 7219752 |
System and method for damping vibration in a drill string |
Mark Ellsworth Wassell, William Evans Turner, Carl Allison Perry |
2007-05-22 |
| 6916248 |
Flexible coupling |
— |
2005-07-12 |
| 6896050 |
Latching system for maintaining position of component within a downhole drill string section |
Denis P. Biglin, Jr., Carl Allison Perry, Thomas Floyd Rzasa, Ronald Seppa, William Evans Turner |
2005-05-24 |
| 6622803 |
Stabilizer for use in a drill string |
Peter R. Harvey, Michael Janusz Woods, Steve Krase, Mark Ellsworth Wassell |
2003-09-23 |