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Stephen D. JOHNSON

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  • Laguna Niguel, CA, US
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Patents Grantslast 30 patents

  • Information Patent Grant

    Collapsible ducted fan unmanned aerial system
    • Patent number 9,975,633
    • Issue date May 22, 2018
    • Northrop Grumman Systems Corporation
    • Stephen D. Johnson
    • B64 - AIRCRAFT AVIATION COSMONAUTICS
  • Information Patent Grant

    Deployable propeller
    • Patent number 9,937,999
    • Issue date Apr 10, 2018
    • Northrop Grumman Systems Corporation
    • Barnaby S. Wainfan
    • B64 - AIRCRAFT AVIATION COSMONAUTICS

Patents Applicationslast 30 patents

  • Information Patent Application

    DEPLOYABLE PROPELLER
    • Publication number 20160347441
    • Publication date Dec 1, 2016
    • Northrop Grumman Systems Corporation
    • Barnaby S. WAINFAN
    • B64 - AIRCRAFT AVIATION COSMONAUTICS