Douglas A. Jahnke

Person

Houston, TX, US

People

Patents Grantslast 30 patents

Information Patent Grant
Rotary control device with self-contained hydraulic reservoir
- Patent number 11,686,173
- Issue date Jun 27, 2023
- Premium Oilfield Technologies, LLC
- Lap Tan Tran
- E21 - EARTH DRILLING MINING
Information Patent Grant
Self-contained hydraulically controlled relief valve
- Patent number 11,614,175
- Issue date Mar 28, 2023
- Premium Oilfield Technologies, LLC
- Douglas Jahnke
- F16 - ENGINEERING ELEMENTS AND UNITS GENERAL MEASURES FOR PRODUCING AND MAINT...
Information Patent Grant
Pipe union assembly
- Patent number 10,895,337
- Issue date Jan 19, 2021
- Premium Oilfield Technologies, LLC
- Douglas Jahnke
- B25 - HAND TOOLS PORTABLE POWER-DRIVEN TOOLS MANIPULATORS
Information Patent Grant
Reduced torque lock assembly
- Patent number 10,830,233
- Issue date Nov 10, 2020
- Premium Oilfield Technologies, LLC
- Douglas A. Jahnke
- F04 - POSITIVE DISPLACEMENT MACHINES FOR LIQUIDS PUMPS FOR LIQUIDS OR ELASTIC...
Information Patent Grant
Blowout preventer with locking ram assembly and method of using same
- Patent number RE47771
- Issue date Dec 17, 2019
- National-Oilwell Varco, L.P.
- Douglas A. Jahnke
Information Patent Grant
Cylinder liner retainer system with torque multiplier and method
- Patent number 10,436,193
- Issue date Oct 8, 2019
- Premium Oilfield Technologies, LLC
- Douglas Jahnke
- F16 - ENGINEERING ELEMENTS AND UNITS GENERAL MEASURES FOR PRODUCING AND MAINT...
Information Patent Grant
Epicyclic washpipe swivel cartridge and method
- Patent number 10,408,328
- Issue date Sep 10, 2019
- Premium Oilfield Technologies, LLC
- Douglas Jahnke
- F16 - ENGINEERING ELEMENTS AND UNITS GENERAL MEASURES FOR PRODUCING AND MAINT...
Information Patent Grant
Quick change cylindrical liner retainer assembly
- Patent number 10,041,490
- Issue date Aug 7, 2018
- Premium Oilfield Technologies, LLC
- Douglas Jahnke
- F04 - POSITIVE DISPLACEMENT MACHINES FOR LIQUIDS PUMPS FOR LIQUIDS OR ELASTIC...
Information Patent Grant
Quick release piston rod assembly
- Patent number 10,036,384
- Issue date Jul 31, 2018
- Premium Oilfield Technologies, LLC
- Douglas Jahnke
- F16 - ENGINEERING ELEMENTS AND UNITS GENERAL MEASURES FOR PRODUCING AND MAINT...
Information Patent Grant
Reduced torque valve cover lock assembly
- Patent number 9,909,580
- Issue date Mar 6, 2018
- Premium Oilfield Technologies, LLC
- Douglas A. Jahnke
- E21 - EARTH DRILLING MINING
Information Patent Grant
Wellsite connector with floating seal member and method of using same
- Patent number 9,869,148
- Issue date Jan 16, 2018
- National-Oilwell Varco, L.P.
- Douglas A. Jahnke
- E21 - EARTH DRILLING MINING
Information Patent Grant
Apparatus and method for connecting tubulars of a wellsite
- Patent number 9,506,304
- Issue date Nov 29, 2016
- National-Oilwell Varco, L.P.
- Douglas Aaron Jahnke
- B25 - HAND TOOLS PORTABLE POWER-DRIVEN TOOLS MANIPULATORS
Information Patent Grant
Contoured ram bore on type U blowout preventer
- Patent number 9,506,313
- Issue date Nov 29, 2016
- T-3 Property Holdings, Inc.
- Douglas Jahnke
- E21 - EARTH DRILLING MINING
Information Patent Grant
Method and apparatus for connecting tubulars of a wellsite
- Patent number 9,410,383
- Issue date Aug 9, 2016
- National-Oilwell Varco, L.P.
- Douglas Aaron Jahnke
- E21 - EARTH DRILLING MINING
Information Patent Grant
Blowout preventer seal assembly and method of using same
- Patent number 9,175,541
- Issue date Nov 3, 2015
- National-Oilwell Varco, L.P.
- Douglas A. Jahnke
- E21 - EARTH DRILLING MINING
Information Patent Grant
Blowout preventer with locking ram assembly and method of using same
- Patent number 9,169,713
- Issue date Oct 27, 2015
- National-Oilwell Varco, L.P.
- Douglas A. Jahnke
- E21 - EARTH DRILLING MINING
Information Patent Grant
Wellsite connector with piston driven collets and method of using same
- Patent number 9,169,710
- Issue date Oct 27, 2015
- National-Oilwell Varco, L.P.
- Douglas A. Jahnke
- F16 - ENGINEERING ELEMENTS AND UNITS GENERAL MEASURES FOR PRODUCING AND MAINT...
Information Patent Grant
Blowout preventer locking door assembly and method of using same
- Patent number 9,169,712
- Issue date Oct 27, 2015
- National-Oilwell Varco, L.P.
- Douglas A. Jahnke
- E06 - DOORS, WINDOWS, SHUTTERS, OR ROLLER BLINDS IN GENERAL LADDERS
Information Patent Grant
Blowout preventer with shearing blades
- Patent number 8,443,879
- Issue date May 21, 2013
- T-3 Property Holdings, Inc.
- Douglas Jahnke
- E21 - EARTH DRILLING MINING
Information Patent Grant
Blowout preventer with shearing blades
- Patent number 8,443,880
- Issue date May 21, 2013
- T-3 Property Holdings, Inc.
- Douglas Jahnke
- E21 - EARTH DRILLING MINING
Information Patent Grant
Blowout preventer with shearing blades
- Patent number 8,167,031
- Issue date May 1, 2012
- T-3 Property Holdings, Inc.
- Douglas Jahnke
- E21 - EARTH DRILLING MINING
Information Patent Grant
Blowout preventer with shearing blades
- Patent number 8,162,046
- Issue date Apr 24, 2012
- T-3 Property Holdings, Inc.
- Douglas Jahnke
- E21 - EARTH DRILLING MINING

Patents Applicationslast 30 patents

Information Patent Application
Self-Contained Hydraulically Controlled Relief Valve
- Publication number 20230012138
- Publication date Jan 12, 2023
- Premium Oilfield Technologies, LLC
- Douglas JAHNKE
- F16 - ENGINEERING ELEMENTS AND UNITS GENERAL MEASURES FOR PRODUCING AND MAINT...
Information Patent Application
Rotary Control Device with Self-Contained Hydraulic Reservoir
- Publication number 20210340834
- Publication date Nov 4, 2021
- Premium Oilfield Technologies, LLC
- Lap Tan TRAN
- E21 - EARTH DRILLING MINING
Information Patent Application
REDUCED TORQUE VALVE COVER LOCK ASSEMBLY
- Publication number 20190345931
- Publication date Nov 14, 2019
- Premium Oilfield Technologies, LLC
- Douglas A. Jahnke
- F04 - POSITIVE DISPLACEMENT MACHINES FOR LIQUIDS PUMPS FOR LIQUIDS OR ELASTIC...
Information Patent Application
PIPE UNION ASSEMBLY
- Publication number 20180356015
- Publication date Dec 13, 2018
- Premium Oilfield Technologies, LLC
- Douglas JAHNKE
- F16 - ENGINEERING ELEMENTS AND UNITS GENERAL MEASURES FOR PRODUCING AND MAINT...
Information Patent Application
REDUCED TORQUE VALVE COVER LOCK ASSEMBLY
- Publication number 20170089334
- Publication date Mar 30, 2017
- Premium Oilfield Technologies, LLC
- Douglas A. Jahnke
- F04 - POSITIVE DISPLACEMENT MACHINES FOR LIQUIDS PUMPS FOR LIQUIDS OR ELASTIC...
Information Patent Application
WELLSITE CONNECTOR WITH PISTON DRIVEN COLLETS AND METHOD OF USING SAME
- Publication number 20150114659
- Publication date Apr 30, 2015
- National-Oilwell Varco, L.P.
- Douglas A. Jahnke
- E21 - EARTH DRILLING MINING
Information Patent Application
WELLSITE CONNECTOR WITH FLOATING SEAL MEMBER AND METHOD OF USING SAME
- Publication number 20150083430
- Publication date Mar 26, 2015
- National-Oilwell Varco, L.P.
- Douglas A. Jahnke
- E21 - EARTH DRILLING MINING
Information Patent Application
METHOD AND APPARATUS FOR CONNECTING TUBULARS OF A WELLSITE
- Publication number 20150068767
- Publication date Mar 12, 2015
- National-Oilwell Varco, L.P.
- Douglas Aaron JAHNKE
- E21 - EARTH DRILLING MINING
Information Patent Application
APPARATUS AND METHOD FOR CONNECTING TUBULARS OF A WELLSITE
- Publication number 20150068766
- Publication date Mar 12, 2015
- National-Oilwell Varco, L.P.
- Douglas Aaron Jahnke
- B25 - HAND TOOLS PORTABLE POWER-DRIVEN TOOLS MANIPULATORS
Information Patent Application
CONTOURED RAM BORE ON TYPE U BLOWOUT PREVENTER
- Publication number 20140034293
- Publication date Feb 6, 2014
- T-3 PROPERTY HOLDINGS, INC.
- Douglas JAHNKE
- E21 - EARTH DRILLING MINING
Information Patent Application
Blowout Preventer Locking Door Assembly and Method of Using Same
- Publication number 20130264502
- Publication date Oct 10, 2013
- Douglas A. Jahnke
- E21 - EARTH DRILLING MINING
Information Patent Application
Blowout Preventer Seal Assembly and Method of Using Same
- Publication number 20130264501
- Publication date Oct 10, 2013
- National-Oilwell Varco, L.P.
- Douglas A. Jahnke
- E21 - EARTH DRILLING MINING
Information Patent Application
Blowout Preventer with Locking Ram Assembly and Method of Using Same
- Publication number 20130264503
- Publication date Oct 10, 2013
- Douglas A. Jahnke
- E21 - EARTH DRILLING MINING
Information Patent Application
BLOWOUT PREVENTER WITH SHEARING BLADES AND METHOD
- Publication number 20130119283
- Publication date May 16, 2013
- T-3 PROPERTY HOLDINGS, INC.
- Douglas JAHNKE
- E21 - EARTH DRILLING MINING
Information Patent Application
BLOWOUT PREVENTER WITH SHEARING BLADES AND METHOD
- Publication number 20120168651
- Publication date Jul 5, 2012
- T-3 PROPERTY HOLDINGS, INC.
- Douglas JAHNKE
- E21 - EARTH DRILLING MINING
Information Patent Application
BLOWOUT PREVENTER WITH SHEARING BLADES AND METHOD
- Publication number 20120043068
- Publication date Feb 23, 2012
- T-3 PROPERTY HOLDINGS, INC.
- Douglas JAHNKE
- E21 - EARTH DRILLING MINING
Information Patent Application
BLOWOUT PREVENTER WITH SHEARING BLADES AND METHOD
- Publication number 20120043083
- Publication date Feb 23, 2012
- T-3 PROPERTY HOLDINGS, INC.
- Douglas JAHNKE
- E21 - EARTH DRILLING MINING

Douglas A. Jahnke

Person

Patents Grantslast 30 patents

Rotary control device with self-contained hydraulic reservoir

Self-contained hydraulically controlled relief valve

Pipe union assembly

Reduced torque lock assembly

Blowout preventer with locking ram assembly and method of using same

Cylinder liner retainer system with torque multiplier and method

Epicyclic washpipe swivel cartridge and method

Quick change cylindrical liner retainer assembly

Quick release piston rod assembly

Reduced torque valve cover lock assembly

Wellsite connector with floating seal member and method of using same

Apparatus and method for connecting tubulars of a wellsite

Contoured ram bore on type U blowout preventer

Method and apparatus for connecting tubulars of a wellsite

Blowout preventer seal assembly and method of using same

Blowout preventer with locking ram assembly and method of using same

Wellsite connector with piston driven collets and method of using same

Blowout preventer locking door assembly and method of using same

Blowout preventer with shearing blades

Blowout preventer with shearing blades

Blowout preventer with shearing blades

Blowout preventer with shearing blades

Patents Applicationslast 30 patents

Self-Contained Hydraulically Controlled Relief Valve

Rotary Control Device with Self-Contained Hydraulic Reservoir

REDUCED TORQUE VALVE COVER LOCK ASSEMBLY

PIPE UNION ASSEMBLY

REDUCED TORQUE VALVE COVER LOCK ASSEMBLY

WELLSITE CONNECTOR WITH PISTON DRIVEN COLLETS AND METHOD OF USING SAME

WELLSITE CONNECTOR WITH FLOATING SEAL MEMBER AND METHOD OF USING SAME

METHOD AND APPARATUS FOR CONNECTING TUBULARS OF A WELLSITE

APPARATUS AND METHOD FOR CONNECTING TUBULARS OF A WELLSITE

CONTOURED RAM BORE ON TYPE U BLOWOUT PREVENTER

Blowout Preventer Locking Door Assembly and Method of Using Same

Blowout Preventer Seal Assembly and Method of Using Same

Blowout Preventer with Locking Ram Assembly and Method of Using Same

BLOWOUT PREVENTER WITH SHEARING BLADES AND METHOD

BLOWOUT PREVENTER WITH SHEARING BLADES AND METHOD

BLOWOUT PREVENTER WITH SHEARING BLADES AND METHOD

BLOWOUT PREVENTER WITH SHEARING BLADES AND METHOD