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David R. Porter

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  • St. Louis, MO, US
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Patents Grantslast 30 patents

  • Information Patent Grant

    Collapsible eyeglass apparatus
    • Patent number 10,114,230
    • Issue date Oct 30, 2018
    • VisOptical, LLC
    • David R. Porter
    • G02 - OPTICS
  • Information Patent Grant

    Extendable eyeglasses and method of use
    • Patent number 9,726,901
    • Issue date Aug 8, 2017
    • VisOptical, LLC
    • David R. Porter
    • G02 - OPTICS
  • Information Patent Grant

    Collapsible eyeglass apparatus
    • Patent number 9,581,830
    • Issue date Feb 28, 2017
    • VisOptical, LLC
    • David R. Porter
    • G02 - OPTICS
  • Information Patent Grant

    Collapsible eyeglass apparatus
    • Patent number 9,310,623
    • Issue date Apr 12, 2016
    • VisOptical, LLC
    • David R. Porter
    • G02 - OPTICS
  • Information Patent Grant

    Extendable eyeglasses and method of use
    • Patent number 8,915,586
    • Issue date Dec 23, 2014
    • VisOptical, LLC
    • David R. Porter
    • G02 - OPTICS
  • Information Patent Grant

    Eyeglasses case
    • Patent number D716549
    • Issue date Nov 4, 2014
    • VisOptical, LLC
    • David R. Porter
    • D03 - Travel goods and personal belongings
  • Information Patent Grant

    Eyeglasses
    • Patent number D716366
    • Issue date Oct 28, 2014
    • VisOptical, LLC
    • David R. Porter
    • D16 - Photography and optical equipment
  • Information Patent Grant

    Eyeglasses
    • Patent number D714854
    • Issue date Oct 7, 2014
    • VisOptical, LLC
    • David R. Porter
    • D16 - Photography and optical equipment
  • Information Patent Grant

    Eyeglasses
    • Patent number D714855
    • Issue date Oct 7, 2014
    • VisOptical, LLC
    • David R. Porter
    • D16 - Photography and optical equipment
  • Information Patent Grant

    Eyeglasses
    • Patent number D714856
    • Issue date Oct 7, 2014
    • VisOptical, LLC
    • David R. Porter
    • D16 - Photography and optical equipment
  • Information Patent Grant

    Eyeglasses
    • Patent number D714857
    • Issue date Oct 7, 2014
    • VisOptical, LLC
    • David R. Porter
    • D16 - Photography and optical equipment
  • Information Patent Grant

    Extendable eyeglasses and method of use
    • Patent number 8,376,544
    • Issue date Feb 19, 2013
    • PorterVision, Inc.
    • David R. Porter
    • G02 - OPTICS

Patents Applicationslast 30 patents