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Dennis W. Gilstad

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  • San Antonio, TX, US
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Patents Grantslast 30 patents

  • Information Patent Grant

    Adaptive stimulation system
    • Patent number 9,879,507
    • Issue date Jan 30, 2018
    • Dennis W. Gilstad
    • E21 - EARTH DRILLING MINING
  • Information Patent Grant

    Adaptive stimulation system
    • Patent number 9,777,556
    • Issue date Oct 3, 2017
    • Dennis W. Gilstad
    • E21 - EARTH DRILLING MINING
  • Information Patent Grant

    Tunable down-hole stimulation array
    • Patent number 9,169,707
    • Issue date Oct 27, 2015
    • Dennis W. Gilstad
    • G01 - MEASURING TESTING
  • Information Patent Grant

    Tunable check valve
    • Patent number 9,080,690
    • Issue date Jul 14, 2015
    • Dennis W. Gilstad
    • F16 - ENGINEERING ELEMENTS AND UNITS GENERAL MEASURES FOR PRODUCING AND MAINT...
  • Information Patent Grant

    Tunable down-hole stimulation system
    • Patent number 9,027,636
    • Issue date May 12, 2015
    • Dennis W. Gilstad
    • G01 - MEASURING TESTING
  • Information Patent Grant

    Tunable fluid end
    • Patent number 8,944,409
    • Issue date Feb 3, 2015
    • Dennis W. Gilstad
    • F16 - ENGINEERING ELEMENTS AND UNITS GENERAL MEASURES FOR PRODUCING AND MAINT...
  • Information Patent Grant

    Tunable hydraulic stimulator
    • Patent number 8,939,200
    • Issue date Jan 27, 2015
    • Dennis W. Gilstad
    • F16 - ENGINEERING ELEMENTS AND UNITS GENERAL MEASURES FOR PRODUCING AND MAINT...
  • Information Patent Grant

    Tunable check valve
    • Patent number 8,905,376
    • Issue date Dec 9, 2014
    • Dennis W. Gilstad
    • F16 - ENGINEERING ELEMENTS AND UNITS GENERAL MEASURES FOR PRODUCING AND MAINT...
  • Information Patent Grant

    Tunable fluid end
    • Patent number 8,827,244
    • Issue date Sep 9, 2014
    • Dennis W. Gilstad
    • F16 - ENGINEERING ELEMENTS AND UNITS GENERAL MEASURES FOR PRODUCING AND MAINT...
  • Information Patent Grant

    Tunable fluid end
    • Patent number 8,746,654
    • Issue date Jun 10, 2014
    • Dennis W. Gilstad
    • F16 - ENGINEERING ELEMENTS AND UNITS GENERAL MEASURES FOR PRODUCING AND MAINT...
  • Information Patent Grant

    Tunable fluid end
    • Patent number 8,720,857
    • Issue date May 13, 2014
    • Dennis W. Gilstad
    • F16 - ENGINEERING ELEMENTS AND UNITS GENERAL MEASURES FOR PRODUCING AND MAINT...
  • Information Patent Grant

    Tunable valve assembly
    • Patent number 8,708,306
    • Issue date Apr 29, 2014
    • Barbara C. Gilstad
    • F16 - ENGINEERING ELEMENTS AND UNITS GENERAL MEASURES FOR PRODUCING AND MAINT...
  • Information Patent Grant

    Tunable valve assembly
    • Patent number 8,567,754
    • Issue date Oct 29, 2013
    • Dennis W. Gilstad
    • F16 - ENGINEERING ELEMENTS AND UNITS GENERAL MEASURES FOR PRODUCING AND MAINT...
  • Information Patent Grant

    Tunable valve assembly
    • Patent number 8,567,753
    • Issue date Oct 29, 2013
    • Dennis W. Gilstad
    • F16 - ENGINEERING ELEMENTS AND UNITS GENERAL MEASURES FOR PRODUCING AND MAINT...
  • Information Patent Grant

    Impulse tolerant valve assembly
    • Patent number 8,550,425
    • Issue date Oct 8, 2013
    • Dennis W. Gilstad
    • F16 - ENGINEERING ELEMENTS AND UNITS GENERAL MEASURES FOR PRODUCING AND MAINT...
  • Information Patent Grant

    Tunable valve assembly
    • Patent number 8,496,224
    • Issue date Jul 30, 2013
    • Dennis W. Gilstad
    • F16 - ENGINEERING ELEMENTS AND UNITS GENERAL MEASURES FOR PRODUCING AND MAINT...
  • Information Patent Grant

    Multifunction ring
    • Patent number 8,403,337
    • Issue date Mar 26, 2013
    • Barbara C. Gilstad
    • F16 - ENGINEERING ELEMENTS AND UNITS GENERAL MEASURES FOR PRODUCING AND MAINT...
  • Information Patent Grant

    Impulse tolerant valve assembly
    • Patent number 8,292,260
    • Issue date Oct 23, 2012
    • Dennis W. Gilstad
    • F16 - ENGINEERING ELEMENTS AND UNITS GENERAL MEASURES FOR PRODUCING AND MAINT...
  • Information Patent Grant

    Multifunction ring
    • Patent number 8,292,301
    • Issue date Oct 23, 2012
    • Dennis W. Gilstad
    • F16 - ENGINEERING ELEMENTS AND UNITS GENERAL MEASURES FOR PRODUCING AND MAINT...
  • Information Patent Grant

    Plunger seal ring
    • Patent number 8,276,918
    • Issue date Oct 2, 2012
    • Barbara C. Gilstad
    • F16 - ENGINEERING ELEMENTS AND UNITS GENERAL MEASURES FOR PRODUCING AND MAINT...
  • Information Patent Grant

    Impulse tolerant valve body
    • Patent number 8,267,371
    • Issue date Sep 18, 2012
    • Dennis W. Gilstad
    • F16 - ENGINEERING ELEMENTS AND UNITS GENERAL MEASURES FOR PRODUCING AND MAINT...
  • Information Patent Grant

    Plunger seal ring
    • Patent number 8,210,542
    • Issue date Jul 3, 2012
    • Dennis W. Gilstad
    • F16 - ENGINEERING ELEMENTS AND UNITS GENERAL MEASURES FOR PRODUCING AND MAINT...
  • Information Patent Grant

    Adaptive positioning system
    • Patent number 7,716,761
    • Issue date May 18, 2010
    • Dennis W. Gilstad
    • A61 - MEDICAL OR VETERINARY SCIENCE HYGIENE
  • Information Patent Grant

    Well tubing and pump rod protector
    • Patent number 5,632,335
    • Issue date May 27, 1997
    • Wallace R. Campbell
    • E21 - EARTH DRILLING MINING
  • Information Patent Grant

    Optical sensor for pulse oximeter
    • Patent number 4,880,304
    • Issue date Nov 14, 1989
    • Nippon Colin Co., Ltd.
    • Jonathan P. Jaeb
    • A61 - MEDICAL OR VETERINARY SCIENCE HYGIENE
  • Information Patent Grant

    Photocharacterization and treatment of normal abnormal and ectopic...
    • Patent number 4,852,579
    • Issue date Aug 1, 1989
    • Karl Storz Endoscopy GmbH and Company
    • Dennis W. Gilstad
    • A61 - MEDICAL OR VETERINARY SCIENCE HYGIENE
  • Information Patent Grant

    Method and apparatus for noninvasive monitoring of arterial blood o...
    • Patent number 4,714,080
    • Issue date Dec 22, 1987
    • Nippon Colin Co., Ltd.
    • Reuben W. Edgar
    • A61 - MEDICAL OR VETERINARY SCIENCE HYGIENE

Patents Applicationslast 30 patents

  • Information Patent Application

    Adaptive Lithotripsy For Cancer Risk Reduction
    • Publication number 20180042627
    • Publication date Feb 15, 2018
    • Dennis W. Gilstad
    • A61 - MEDICAL OR VETERINARY SCIENCE HYGIENE
  • Information Patent Application

    Adaptive Stimulation System
    • Publication number 20180003009
    • Publication date Jan 4, 2018
    • Dennis W. Gilstad
    • G01 - MEASURING TESTING
  • Information Patent Application

    Adaptive Stimulation System
    • Publication number 20170114620
    • Publication date Apr 27, 2017
    • Dennis W. Gilstad
    • E21 - EARTH DRILLING MINING
  • Information Patent Application

    Tunable Check Valve
    • Publication number 20150040998
    • Publication date Feb 12, 2015
    • Dennis W. Gilstad
    • F16 - ENGINEERING ELEMENTS AND UNITS GENERAL MEASURES FOR PRODUCING AND MAINT...
  • Information Patent Application

    Tunable Down-Hole Stimulation System
    • Publication number 20140332199
    • Publication date Nov 13, 2014
    • Dennis W. Gilstad
    • G01 - MEASURING TESTING
  • Information Patent Application

    Tunable Check Valve
    • Publication number 20140230928
    • Publication date Aug 21, 2014
    • Dennis W. Gilstad
    • F04 - POSITIVE DISPLACEMENT MACHINES FOR LIQUIDS PUMPS FOR LIQUIDS OR ELASTIC...
  • Information Patent Application

    Tunable Fluid End
    • Publication number 20140144528
    • Publication date May 29, 2014
    • Dennis W. Gilstad
    • F04 - POSITIVE DISPLACEMENT MACHINES FOR LIQUIDS PUMPS FOR LIQUIDS OR ELASTIC...
  • Information Patent Application

    Tunable Fluid End
    • Publication number 20140144527
    • Publication date May 29, 2014
    • Dennis W. Gilstad
    • F04 - POSITIVE DISPLACEMENT MACHINES FOR LIQUIDS PUMPS FOR LIQUIDS OR ELASTIC...
  • Information Patent Application

    Tunable Fluid End
    • Publication number 20140034862
    • Publication date Feb 6, 2014
    • Dennis W. Gilstad
    • F04 - POSITIVE DISPLACEMENT MACHINES FOR LIQUIDS PUMPS FOR LIQUIDS OR ELASTIC...
  • Information Patent Application

    Tunable Fluid End
    • Publication number 20140034863
    • Publication date Feb 6, 2014
    • Dennis W. Gilstad
    • F04 - POSITIVE DISPLACEMENT MACHINES FOR LIQUIDS PUMPS FOR LIQUIDS OR ELASTIC...
  • Information Patent Application

    Tunable Valve Assembly
    • Publication number 20140021398
    • Publication date Jan 23, 2014
    • Barbara C. Gilstad
    • Y10 - TECHNICAL SUBJECTS COVERED BY FORMER USPC
  • Information Patent Application

    Tunable Valve Assembly
    • Publication number 20130291982
    • Publication date Nov 7, 2013
    • Dennis W. Gilstad
    • F04 - POSITIVE DISPLACEMENT MACHINES FOR LIQUIDS PUMPS FOR LIQUIDS OR ELASTIC...