Entchev; Pavlin B.

Patent Applications and Registrations

Patent applications and USPTO patent grants for Entchev; Pavlin B..The latest application filed is for "chelating acid blends for stimulation of a subterranean formation, methods of utilizing the chelating acid blends, and hydrocarbon wells that include the chelating acid blends".

Company Profile

10.42.52

Entchev; Pavlin B. - Spring TX
Entchev; Pavlin B. - Stavanger NO
Entchev; Pavlin B. - Moscow N/A RU
Entchev; Pavlin B. - Houston TX

*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
Granular crosslinked polyethylene as a hydraulic fracturing proppant Grant 11,414,974 - Entchev , et al. August 16, 2	2022-08-16
Hydrocarbon wells including crosslinked polymer granules as lost circulation material and methods of drilling the hydrocarbon wells Grant 11,345,842 - Shirley , et al. May 31, 2	2022-05-31
Methods of manufacturing highly crosslinked polymer particulate Grant 11,319,417 - Galuska , et al. May 3, 2	2022-05-03
Hydrocarbon wells including crosslinked polymer granules in sand control structures and methods of completing the hydrocarbon wells Grant 11,286,755 - Yeh , et al. March 29, 2	2022-03-29
Chelating Acid Blends For Stimulation Of A Subterranean Formation, Methods Of Utilizing The Chelating Acid Blends, And Hydrocarbon Wells That Include The Chelating Acid Blends App 20210324260 - Lo Cascio; Mauro ; et al.	2021-10-21
Highly Crosslinked Polymer Particulate and Methods of Manufacturing Highly Crosslinked Polymer Particulate App 20210047483 - Galuska; Alan A. ; et al.	2021-02-18
Granular Crosslinked Polyethylene as a Hydraulic Fracturing Proppant App 20210047906 - Entchev; Pavlin B. ; et al.	2021-02-18
Hydrocarbon Wells Including Crosslinked Polymer Granules in Sand Control Structures and Methods of Completing the Hydrocarbon Wells App 20210047902 - Yeh; Charles S. ; et al.	2021-02-18
Hydrocarbon Wells Including Crosslinked Polymer Granules as Lost Circulation Material and Methods of Drilling the Hydrocarbon Wells App 20210047551 - Shirley; Robert M. ; et al.	2021-02-18
Highly Crosslinked Polymer Particulate App 20210047480 - Galuska; Alan A. ; et al.	2021-02-18
Methods of Manufacturing Highly Crosslinked Polymer Particulate App 20210047482 - Galuska; Alan A. ; et al.	2021-02-18
System for Transporting Sand for Wellbore Operations App 20200406936 - Entchev; Pavlin B. ; et al.	2020-12-31
Coiled Tubing Assembly App 20190316444 - Entchev; Pavlin B. ; et al.	2019-10-17
Safety system for autonomous downhole tool Grant 10,352,144 - Entchev , et al. July 16, 2	2019-07-16
Methods for Refracturing a Subterranean Formation Using Shearable Ball Seats for Zone Isolation App 20180245439 - Entchev; Pavlin B. ; et al.	2018-08-30
Methods for Refracturing a Subterranean Formation App 20180245440 - Entchev; Pavlin B. ; et al.	2018-08-30
Methods for multi-zone fracture stimulation of a well Grant 10,053,968 - Tolman , et al. August 21, 2	2018-08-21
Selectively actuated plungers and systems and methods including the same Grant 9,976,399 - Tolman , et al. May 22, 2	2018-05-22
Safety System For Autonomous Downhole Tool App 20180135398 - Entchev; Pavlin B. ; et al.	2018-05-17
Assembly and method for multi-zone fracture stimulation of a reservoir using autonomous tubular units Grant 9,963,955 - Tolman , et al. May 8, 2	2018-05-08
Safety system for autonomous downhole tool Grant 9,903,192 - Entchev , et al. February 27, 2	2018-02-27
Crossover joint for connecting eccentric flow paths to concentric flow paths Grant 9,797,226 - Yeh , et al. October 24, 2	2017-10-24
Systems and methods for secondary sealing of a perforation within a wellbore casing Grant 9,765,592 - Tolman , et al. September 19, 2	2017-09-19
Sand control screen having improved reliability Grant 9,725,989 - Mayer , et al. August 8, 2	2017-08-08
Systems and methods of diverting fluids in a wellbore using destructible plugs Grant 9,624,750 - Entchev , et al. April 18, 2	2017-04-18
Completing a well in a reservoir Grant 9,587,474 - Entchev , et al. March 7, 2	2017-03-07
Completing a well in a reservoir Grant 9,581,003 - Kofoed , et al. February 28, 2	2017-02-28
Assembly and Method For Multi-Zone Fracture Stimulation of A Reservoir Using Autonomous Tubular Units App 20160168962 - Tolman; Randy C. ; et al.	2016-06-16
Method for automatic control and positioning of autonomous downhole tools Grant 9,328,578 - Kumaran , et al. May 3, 2	2016-05-03
Drag enhancing structures for downhole operations, and systems and methods including the same Grant 9,322,239 - Angeles Boza , et al. April 26, 2	2016-04-26
Assembly and method for multi-zone fracture stimulation of a reservoir using autonomous tubular units Grant 9,284,819 - Tolman , et al. March 15, 2	2016-03-15
Systems and methods for advanced well access to subterranean formations Grant 9,284,794 - Dale , et al. March 15, 2	2016-03-15
Methods For Multi-zone Fracture Stimulation Of A Well App 20160040520 - Tolman; Randy C. ; et al.	2016-02-11
Selectively Actuated Plungers and Systems and Methods Including the Same App 20150275633 - Tolman; Randy C. ; et al.	2015-10-01
Communications module for alternate path gravel packing, and method for completing a wellbore Grant 9,133,705 - Angeles Boza , et al. September 15, 2	2015-09-15
Drag Enhancing Structures for Downhole Operations, and Systems and Methods Including the Same App 20150247372 - Angeles Boza; Renzo M. ; et al.	2015-09-03
Systems and Methods for Secondary Sealing of a Perforation within a Wellbore Casing App 20150090453 - Tolman; Randy C. ; et al.	2015-04-02
Completing a Well in a Reservoir App 20140338899 - Entchev; Pavlin B. ; et al.	2014-11-20
Completing a Well in a Reservoir App 20140318781 - Kofoed; Curtis W. ; et al.	2014-10-30
Sand Control Screen Having Improved Reliability App 20140262260 - Mayer; Christian S. ; et al.	2014-09-18
Safety System For Autonomous Downhole Tool App 20140131035 - Entchev; Pavlin B. ; et al.	2014-05-15
Systems and methods for hydraulic barrier formation to improve sweep efficiency in subterranean oil reservoirs Grant 8,657,005 - Entchev , et al. February 25, 2	2014-02-25
Systems and Methods For Advanced Well Access to Subterranean Formations App 20130299164 - Dale; Bruce A. ; et al.	2013-11-14
Crossover Joint For Connecting Eccentric Flow Paths to Concentric Flow Paths App 20130255943 - Yeh; Charles S. ; et al.	2013-10-03
Method for Automatic Control and Positioning of Autonomous Downhole Tools App 20130255939 - Kumaran; Krishnan ; et al.	2013-10-03
Autonomous Downhole Conveyance System App 20130248174 - Dale; Bruce A. ; et al.	2013-09-26
Communications Module For Alternate Path Gravel Packing, And Method For Completing A Wellbore App 20130248172 - Angeles Boza; Renzo Moises ; et al.	2013-09-26
Methods For Establishing A Subsurface Fracture Network App 20130220604 - El-Rabaa; Abdel Wadood M. ; et al.	2013-08-29
Methods and apparatus for controlling cutting ribbons during a drilling operation Grant 8,469,120 - Entchev , et al. June 25, 2	2013-06-25
Assembly And Method For Multi-zone Fracture Stimulation Of A Reservoir Using Autonomous Tubular Units App 20130062055 - Tolman; Randy C. ; et al.	2013-03-14
Systems and Methods of Diverting Fluids In A Wellbore Using Destructible Plugs App 20120125631 - Entchev; Pavlin B. ; et al.	2012-05-24
Systems and Methods For Hydraulic Barrier Formation To Improve Sweep Efficiency In Subterranean Oil Reservoirs App 20110265994 - Entchev; Pavlin B. ; et al.	2011-11-03
System for managing variable density drilling mud Grant 7,980,329 - Spiecker , et al. July 19, 2	2011-07-19
Methods and Apparatus For Controlling Cutting Ribbons During A Drilling Operation App 20100126771 - Entchev; Pavlin B. ; et al.	2010-05-27
Method and Apparatus For Managing Variable Density Drilling Mud App 20100116553 - Spiecker; Paul Matthew ; et al.	2010-05-13
Method and apparatus for managing variable density drilling mud Grant 7,677,332 - Spiecker , et al. March 16, 2	2010-03-16
Method and apparatus for managing variable density drilling mud App 20090050374 - Spiecker; Paul Matthew ; et al.	2009-02-26
Shape memory alloy vibration isolation device App 20080060849 - Entchev; Pavlin B. ; et al.	2008-03-13
Variable density drilling mud App 20070027036 - Polizzotti; Richard S. ; et al.	2007-02-01

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