Joseph QUACKENBUSH

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Houston, TX, US

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Patents Grantslast 30 patents

Information Patent Grant
Dirty fluid pressure regulator and control valve
- Patent number 10,584,561
- Issue date Mar 10, 2020
- Proserv Operations, Inc.
- Preston Weintraub
- F16 - ENGINEERING ELEMENTS AND UNITS GENERAL MEASURES FOR PRODUCING AND MAINT...
Information Patent Grant
Key seal and valve
- Patent number 10,364,893
- Issue date Jul 30, 2019
- Proserv Operations, Inc.
- Preston Weintraub
- F16 - ENGINEERING ELEMENTS AND UNITS GENERAL MEASURES FOR PRODUCING AND MAINT...
Information Patent Grant
Dirty fluid pressure regulator and control valve
- Patent number 9,982,511
- Issue date May 29, 2018
- Proserv Operations, Inc.
- Preston Weintraub
- E21 - EARTH DRILLING MINING
Information Patent Grant
Key seal and valve
- Patent number 9,423,031
- Issue date Aug 23, 2016
- Proserv Operations, Inc.
- Preston Weintraub
- F16 - ENGINEERING ELEMENTS AND UNITS GENERAL MEASURES FOR PRODUCING AND MAINT...

Patents Applicationslast 30 patents

Information Patent Application
DIRTY FLUID PRESSURE REGULATOR AND CONTROL VALVE
- Publication number 20180274329
- Publication date Sep 27, 2018
- Proserv Operations, Inc.
- Preston WEINTRAUB
- E21 - EARTH DRILLING MINING
Information Patent Application
KEY SEAL AND VALVE
- Publication number 20160341314
- Publication date Nov 24, 2016
- Proserv Operations, Inc.
- Preston WEINTRAUB
- E21 - EARTH DRILLING MINING
Information Patent Application
DIRTY FLUID PRESSURE REGULATOR AND CONTROL VALVE
- Publication number 20150191997
- Publication date Jul 9, 2015
- Preston WEINTRAUB
- E21 - EARTH DRILLING MINING
Information Patent Application
KEY SEAL AND VALVE
- Publication number 20150115536
- Publication date Apr 30, 2015
- Proserv Operations, Inc.
- Preston Weintraub
- F16 - ENGINEERING ELEMENTS AND UNITS GENERAL MEASURES FOR PRODUCING AND MAINT...