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Lance Wikkerink

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  • St. Petersburg, FL, US
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Patents Grantslast 30 patents

  • Information Patent Grant

    Automatic door safety system
    • Patent number 4,914,859
    • Issue date Apr 10, 1990
    • Lanson Electronics, Inc.
    • Daniel C. Gionet
    • B66 - HOISTING LIFTING HAULING
  • Information Patent Grant

    Automatic door safety system
    • Patent number 4,866,881
    • Issue date Sep 19, 1989
    • Lanson Electronics, Inc.
    • Richard A. Morrow
    • E05 - LOCKS KEYS WINDOW OR DOOR FITTINGS SAFES
  • Information Patent Grant

    Flag staff
    • Patent number 4,727,822
    • Issue date Mar 1, 1988
    • Lance Wikkerink
    • G09 - EDUCATION CRYPTOGRAPHY DISPLAY ADVERTISING SEALS