Dorffer; Daniel F.

Patent Applications and Registrations

Patent applications and USPTO patent grants for Dorffer; Daniel F..The latest application filed is for "determination of near wellbore properties using natural gamma rays".

Company Profile

1.21.17

Dorffer; Daniel F. - Houston TX
Dorffer; Daniel F - Houston TX US

*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
Determination of near wellbore properties using natural gamma rays Grant 10,895,661 - Guo , et al. January 19, 2	2021-01-19
Cement evaluation with neutron-neutron measurement Grant 10,480,306 - Guo , et al. Nov	2019-11-19
Method to correct and pulsed neutron fan based interpretation for shale effects Grant 10,209,393 - Quirein , et al. Feb	2019-02-19
System and method of determining a value indicative of hydrogen index Grant 10,156,657 - Guo , et al. Dec	2018-12-18
Determination Of Near Wellbore Properties Using Natural Gamma Rays App 20180210109 - Guo; Qingzhen ; et al.	2018-07-26
Method to Correct and Pulsed Neutron Fan Based Interpretation for Shale Effects App 20170315259 - Quirein; John Andrew ; et al.	2017-11-02
Cement Evaluation With Neutron-neutron Measurement App 20170167243 - Guo; Weijun ; et al.	2017-06-15
Changing the state of a switch through the application of power Grant 9,530,581 - Bonavides , et al. December 27, 2	2016-12-27
Ambient-activated switch for downhole operations Grant 9,513,400 - Dorffer , et al. December 6, 2	2016-12-06
Ambient-activated Switch For Downhole Operations App 20150101866 - Dorffer; Daniel F. ; et al.	2015-04-16
Method and system of determining a value indicative of gas saturation of a formation Grant 8,996,315 - Guo , et al. March 31, 2	2015-03-31
Smooth wireline Grant 8,969,728 - Dorffer , et al. March 3, 2	2015-03-03
System And Method Of Determining A Value Indicative Of Hydrogen Index App 20150041633 - Guo; Weijun ; et al.	2015-02-12
Ambient-activated switch for downhole operations Grant 8,944,162 - Dorffer , et al. February 3, 2	2015-02-03
Method of determining a value indicative of fracture quality Grant 8,881,808 - Dorffer , et al. November 11, 2	2014-11-11
Mechanical actuator with electronic adjustment Grant 8,739,860 - Crawford , et al. June 3, 2	2014-06-03
Method Of Determining A Value Indicative Of Fracture Quality App 20140144622 - Dorffer; Daniel F. ; et al.	2014-05-29
Method And System Of Determining A Value Indicative Of Gas Saturation Of A Formation App 20140142856 - Guo; Weijun ; et al.	2014-05-22
Changing The State Of A Switch Through The Application Of Power App 20140091893 - Bonavides; Clovis Satyro ; et al.	2014-04-03
Fluid conductivity measurement tool and methods Grant 8,538,701 - Roy , et al. September 17, 2	2013-09-17
Fracturing monitoring within a treatment well Grant 8,368,553 - Zannoni , et al. February 5, 2	2013-02-05
Method and system of determining a value indicative of gas saturation of a formation Grant 8,346,481 - Jacobson , et al. January 1, 2	2013-01-01
Smooth Wireline App 20120227481 - Dorffer; Daniel F. ; et al.	2012-09-13
Mechanical Actuator With Electronic Adjustment App 20110272145 - Crawford; Donald Leon ; et al.	2011-11-10
Method And System Of Determining A Value Indicative Of Gas Saturation Of A Formation App 20100292927 - Jacobson; Larry A. ; et al.	2010-11-18
Fracturing Monitoring Within A Treatment Well App 20100265094 - Zannoni; Steve ; et al.	2010-10-21
Ambient-activated Switch For Downhole Operations App 20100059283 - Dorffer; Daniel F. ; et al.	2010-03-11

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