Dopf; Anthony R.

Patent Applications and Registrations

Patent applications and USPTO patent grants for Dopf; Anthony R..The latest application filed is for "drill bit assembly having electrically isolated gap joint for measurement of reservoir properties".

Company Profile

0.17.19

Dopf; Anthony R. - Bragg Creek N/A CA
Dopf; Anthony R. - Calgary CA
Dopf; Anthony R. - Bragg Cre ck CA

*profile and listings may contain filings by different individuals or companies with the same name. Review application materials to confirm ownership/assignment.

Patent Activity

Patent	Date
Drill bit assembly having electrically isolated gap joint for measurement of reservoir properties Grant 9,022,144 - Clark , et al. May 5, 2	2015-05-05
Drill Bit Assembly Having Electrically Isolated Gap Joint for Measurement of Reservoir Properties App 20150101867 - Clark; Brian Oliver ; et al.	2015-04-16
Electromagnetic telemetry assembly with protected antenna Grant 8,648,733 - Dopf , et al. February 11, 2	2014-02-11
Spindle for mud pulse telemetry applications Grant 8,634,274 - Camwell , et al. January 21, 2	2014-01-21
Brush and brush housing arrangement to mitigate hydrodynamic brush lift in fluid-immersed electric motors Grant 8,624,464 - Dopf , et al. January 7, 2	2014-01-07
Drill Bit Assembly Having Electrically Isolated Gap Joint For Measurement Of Reservoir Properties App 20130043874 - Clark; Brian ; et al.	2013-02-21
Drill Bit Assembly Having Aligned Features App 20130032412 - Haugvaldstad; Kjell ; et al.	2013-02-07
Electrical isolation connector for electromagnetic gap sub Grant 8,308,199 - Camwell , et al. November 13, 2	2012-11-13
Acoustic isolator Grant 8,270,251 - Drumheller , et al. September 18, 2	2012-09-18
Spindle For Mud Pulse Telemetry Applications App 20120222899 - Camwell; Paul L. ; et al.	2012-09-06
Spindle for mud pulse telemetry applications Grant 8,174,929 - Camwell , et al. May 8, 2	2012-05-08
Electromagnetic Telemetry Assembly With Protected Antenna App 20110309949 - Dopf; Anthony R. ; et al.	2011-12-22
Brush And Brush Housing Arrangement To Mitigate Hydrodynamic Brush Lift In Fluid-Immersed Electric Motors App 20110227447 - Dopf; Anthony R. ; et al.	2011-09-22
Electrical isolation connector for electromagnetic gap sub Grant 7,900,968 - Camwell , et al. March 8, 2	2011-03-08
Electrical Isolation Connector For Electromagnetic Gap Sub App 20110036557 - Camwell; Paul L. ; et al.	2011-02-17
Fluid erosion protection washer for rotating shaft in MWD tool Grant 7,839,719 - Dopf , et al. November 23, 2	2010-11-23
Brush and brush housing arrangement to mitigate hydrodynamic brush lift in fluid-immersed electric motors Grant 7,821,178 - Camwell , et al. October 26, 2	2010-10-26
Acoustic Isolator App 20100157741 - Drumheller; Douglas S. ; et al.	2010-06-24
Electrical Isolation Connector For Electromagnetic Gap Sub App 20100043229 - Camwell; Paul L. ; et al.	2010-02-25
Fluid Erosion Protection Washer For Rotating Shaft In Mwd Tool App 20090224193 - Dopf; Anthony R. ; et al.	2009-09-10
Fluid erosion protection washer for rotating shaft in MWD tool Grant 7,532,540 - Dopf , et al. May 12, 2	2009-05-12
Spindle For Mud Pulse Telemetry Applications App 20090038851 - Camwell; Paul L. ; et al.	2009-02-12
Electrical Isolation Connector For Electromagnetic Gap Sub App 20080191900 - Camwell; Paul L. ; et al.	2008-08-14
Acoustic isolator App 20070153629 - Drumheller; Douglas S. ; et al.	2007-07-05
Fluid erosion protection washer for rotating shaft in MWD tool App 20070045583 - Dopf; Anthony R. ; et al.	2007-03-01
Brush and brush housing arrangement to mitigate hydrodynamic brush lift in fluid-immersed electric motors App 20060261701 - Camwell; Paul L. ; et al.	2006-11-23
Apparatus for receiving downhole acoustic signals Grant 6,956,791 - Dopf , et al. October 18, 2	2005-10-18
Harsh environment rotatable connector Grant 6,902,414 - Dopf , et al. June 7, 2	2005-06-07
Harsh Environment Rotatable Connector App 20050070141 - Dopf, Anthony R. ; et al.	2005-03-31
Apparatus for receiving downhole acoustic signals App 20040145970 - Dopf, Anthony R. ; et al.	2004-07-29

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