TREA

David Hefling

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  • Plainfield, IL, US
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Patents Grantslast 30 patents

Patents Applicationslast 30 patents

  • Information Patent Application

    SECURITY LOCKDOWN DEVICE AND METHOD
    • Publication number 20240412608
    • Publication date Dec 12, 2024
    • SENNCO SOLUTION INC.
    • Christopher A. MARSZALEK
    • G08 - SIGNALLING
  • Information Patent Application

    SECURITY LOCKDOWN DEVICE AND METHOD
    • Publication number 20210375106
    • Publication date Dec 2, 2021
    • Sennco Solutions Inc.
    • Christopher Alan Marszalek
    • E05 - LOCKS KEYS WINDOW OR DOOR FITTINGS SAFES