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Louis B. Gratzer

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  • Seattle, WA, US
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Patents Grantslast 30 patents

  • Information Patent Grant

    Wing tip with optimum loading
    • Patent number 11,511,851
    • Issue date Nov 29, 2022
    • Aviation Partners, Inc.
    • Louis B. Gratzer
    • B64 - AIRCRAFT AVIATION COSMONAUTICS
  • Information Patent Grant

    Wing tip with winglet and ventral fin
    • Patent number 10,787,246
    • Issue date Sep 29, 2020
    • Aviation Partners, Inc.
    • Louis B. Gratzer
    • B64 - AIRCRAFT AVIATION COSMONAUTICS
  • Information Patent Grant

    Split blended winglet
    • Patent number 10,589,846
    • Issue date Mar 17, 2020
    • Aviation Partners, Inc.
    • Louis B. Gratzer
    • B64 - AIRCRAFT AVIATION COSMONAUTICS
  • Information Patent Grant

    Wing tip with winglet and ventral fin
    • Patent number 10,377,472
    • Issue date Aug 13, 2019
    • Aviation Partners, Inc.
    • Louis B. Gratzer
    • B64 - AIRCRAFT AVIATION COSMONAUTICS
  • Information Patent Grant

    Split blended winglet
    • Patent number 10,252,793
    • Issue date Apr 9, 2019
    • Aviation Partners, Inc.
    • Louis B. Gratzer
    • Y02 - TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMA...
  • Information Patent Grant

    Wing tip with optimum loading
    • Patent number 10,232,934
    • Issue date Mar 19, 2019
    • Aviation Partners, Inc.
    • Louis B. Gratzer
    • B64 - AIRCRAFT AVIATION COSMONAUTICS
  • Information Patent Grant

    Split blended winglet
    • Patent number 10,106,247
    • Issue date Oct 23, 2018
    • Aviation Partners, Inc.
    • Louis B. Gratzer
    • Y02 - TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMA...
  • Information Patent Grant

    Split blended winglet
    • Patent number 10,005,546
    • Issue date Jun 26, 2018
    • Aviation Partners, Inc.
    • Louis B. Gratzer
    • B64 - AIRCRAFT AVIATION COSMONAUTICS
  • Information Patent Grant

    Split spiroid
    • Patent number 9,580,170
    • Issue date Feb 28, 2017
    • Aviation Partners, Inc.
    • Louis B. Gratzer
    • B64 - AIRCRAFT AVIATION COSMONAUTICS
  • Information Patent Grant

    Split spiroid
    • Patent number 9,434,470
    • Issue date Sep 6, 2016
    • Aviation Partners, Inc.
    • Louis B. Gratzer
    • B64 - AIRCRAFT AVIATION COSMONAUTICS
  • Information Patent Grant

    Wing tip with optimum loading
    • Patent number 9,381,999
    • Issue date Jul 5, 2016
    • C.R. Bard, Inc.
    • Louis B. Gratzer
    • B64 - AIRCRAFT AVIATION COSMONAUTICS
  • Information Patent Grant

    Split blended winglet
    • Patent number 9,302,766
    • Issue date Apr 5, 2016
    • Aviation Partners, Inc.
    • Louis B. Gratzer
    • B64 - AIRCRAFT AVIATION COSMONAUTICS
  • Information Patent Grant

    Split spiroid
    • Patent number 9,038,963
    • Issue date May 26, 2015
    • Aviation Partners, Inc.
    • Louis B. Gratzer
    • B64 - AIRCRAFT AVIATION COSMONAUTICS
  • Information Patent Grant

    Split blended winglet
    • Patent number 8,944,386
    • Issue date Feb 3, 2015
    • Aviation Partners, Inc.
    • Louis B. Gratzer
    • B64 - AIRCRAFT AVIATION COSMONAUTICS
  • Information Patent Grant

    Blended winglet
    • Patent number 5,348,253
    • Issue date Sep 20, 1994
    • Louis B. Gratzer
    • B64 - AIRCRAFT AVIATION COSMONAUTICS
  • Information Patent Grant

    Spiroid-tipped wing
    • Patent number 5,102,068
    • Issue date Apr 7, 1992
    • Louis B. Gratzer
    • B64 - AIRCRAFT AVIATION COSMONAUTICS
  • Information Patent Grant

    Ring-shrouded propeller
    • Patent number 5,096,382
    • Issue date Mar 17, 1992
    • Louis B. Gratzer
    • B64 - AIRCRAFT AVIATION COSMONAUTICS
  • Information Patent Grant

    Laminar flow control airfoil
    • Patent number 4,813,631
    • Issue date Mar 21, 1989
    • The Boeing Company
    • Louis B. Gratzer
    • B64 - AIRCRAFT AVIATION COSMONAUTICS
  • Information Patent Grant

    Laminar flow control airfoil
    • Patent number 4,575,030
    • Issue date Mar 11, 1986
    • The Boeing Company
    • Louis B. Gratzer
    • B64 - AIRCRAFT AVIATION COSMONAUTICS
  • Information Patent Grant

    Aerodynamically contoured, low drag wing engine and engine nacelle...
    • Patent number 4,449,680
    • Issue date May 22, 1984
    • The Boeing Company
    • Louis B. Gratzer
    • B64 - AIRCRAFT AVIATION COSMONAUTICS
  • Information Patent Grant

    Aerodynamically contoured, low drag wing, engine and engine nacelle...
    • Patent number 4,449,682
    • Issue date May 22, 1984
    • The Boeing Company
    • Louis B. Gratzer
    • B64 - AIRCRAFT AVIATION COSMONAUTICS
  • Information Patent Grant

    Aerodynamically contoured, low drag wing engine and engine nacelle...
    • Patent number 4,449,683
    • Issue date May 22, 1984
    • The Boeing Company
    • Louis B. Gratzer
    • B64 - AIRCRAFT AVIATION COSMONAUTICS
  • Information Patent Grant

    Aerodynamically contoured, low drag wing, engine and engine nacelle...
    • Patent number 4,449,681
    • Issue date May 22, 1984
    • The Boeing Company
    • Louis B. Gratzer
    • B64 - AIRCRAFT AVIATION COSMONAUTICS

Patents Applicationslast 30 patents

  • Information Patent Application

    Wing Tip With Winglet And Ventral Fin
    • Publication number 20200001983
    • Publication date Jan 2, 2020
    • Aviation Partners, Inc.
    • Louis B. Gratzer
    • B64 - AIRCRAFT AVIATION COSMONAUTICS
  • Information Patent Application

    Split Blended Winglet
    • Publication number 20190233089
    • Publication date Aug 1, 2019
    • Aviation Partners, Inc.
    • Louis B. Gratzer
    • B64 - AIRCRAFT AVIATION COSMONAUTICS
  • Information Patent Application

    Wing Tip With Optimum Loading
    • Publication number 20190210715
    • Publication date Jul 11, 2019
    • Aviation Partners, Inc.
    • Louis B. Gratzer
    • B64 - AIRCRAFT AVIATION COSMONAUTICS
  • Information Patent Application

    Wing Tip With Winglet And Ventral Fin
    • Publication number 20190055007
    • Publication date Feb 21, 2019
    • Aviation Partners, Inc.
    • Louis B. Gratzer
    • B64 - AIRCRAFT AVIATION COSMONAUTICS
  • Information Patent Application

    Split Blended Winglet
    • Publication number 20180319484
    • Publication date Nov 8, 2018
    • Aviation Partners, Inc.
    • Louis B. Gratzer
    • B64 - AIRCRAFT AVIATION COSMONAUTICS
  • Information Patent Application

    Wing Tip With Optimum Loading
    • Publication number 20170057622
    • Publication date Mar 2, 2017
    • Aviation Partners, Inc.
    • Louis B. Gratzer
    • B64 - AIRCRAFT AVIATION COSMONAUTICS
  • Information Patent Application

    Split Spiroid
    • Publication number 20160368595
    • Publication date Dec 22, 2016
    • Aviation Partners, Inc.
    • Louis B. Gratzer
    • B64 - AIRCRAFT AVIATION COSMONAUTICS
  • Information Patent Application

    Split Blended Winglet
    • Publication number 20160214706
    • Publication date Jul 28, 2016
    • Aviation Partners, Inc.
    • Louis B. Gratzer
    • B64 - AIRCRAFT AVIATION COSMONAUTICS
  • Information Patent Application

    Split Spiroid
    • Publication number 20160159467
    • Publication date Jun 9, 2016
    • Aviation Partners, Inc.
    • Louis B. Gratzer
    • B64 - AIRCRAFT AVIATION COSMONAUTICS
  • Information Patent Application

    Split Blended Winglet
    • Publication number 20150217858
    • Publication date Aug 6, 2015
    • Aviation Partners, Inc.
    • Louis B. Gratzer
    • B64 - AIRCRAFT AVIATION COSMONAUTICS
  • Information Patent Application

    Split Blended Winglet
    • Publication number 20140346281
    • Publication date Nov 27, 2014
    • Louis B. Gratzer
    • B64 - AIRCRAFT AVIATION COSMONAUTICS
  • Information Patent Application

    Split Spiroid
    • Publication number 20120312929
    • Publication date Dec 13, 2012
    • Louis B. Gratzer
    • B64 - AIRCRAFT AVIATION COSMONAUTICS
  • Information Patent Application

    Split Blended Winglet
    • Publication number 20120312928
    • Publication date Dec 13, 2012
    • Louis B. Gratzer
    • B64 - AIRCRAFT AVIATION COSMONAUTICS
  • Information Patent Application

    Curved Wing Tip
    • Publication number 20100181432
    • Publication date Jul 22, 2010
    • Aviation Partners, Inc.
    • Louis B. Gratzer
    • Y02 - TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMA...