TREA

David Workman

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  • Carlsbad, CA, US
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Patents Grantslast 30 patents

  • Information Patent Grant

    Portable door securement device
    • Patent number 11,203,889
    • Issue date Dec 21, 2021
    • David Workman
    • E05 - LOCKS KEYS WINDOW OR DOOR FITTINGS SAFES
  • Information Patent Grant

    Portable door securement device
    • Patent number 10,435,928
    • Issue date Oct 8, 2019
    • David Workman
    • E05 - LOCKS KEYS WINDOW OR DOOR FITTINGS SAFES

Patents Applicationslast 30 patents

  • Information Patent Application

    Portable Sliding Door Securement Device
    • Publication number 20220145667
    • Publication date May 12, 2022
    • David Workman
    • E05 - LOCKS KEYS WINDOW OR DOOR FITTINGS SAFES
  • Information Patent Application

    Portable Door Securement Device
    • Publication number 20200040624
    • Publication date Feb 6, 2020
    • David Workman
    • E05 - LOCKS KEYS WINDOW OR DOOR FITTINGS SAFES
  • Information Patent Application

    Portable Door Securement Device
    • Publication number 20190010743
    • Publication date Jan 10, 2019
    • David Workman
    • E05 - LOCKS KEYS WINDOW OR DOOR FITTINGS SAFES