TREA

Marron Hak

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  • Richmond, VA, US
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Patents Grantslast 30 patents

  • Information Patent Grant

    Air purifier
    • Patent number 6,494,940
    • Issue date Dec 17, 2002
    • Hamilton Beach/Proctor-Silex, Inc.
    • Marron Hak
    • A61 - MEDICAL OR VETERINARY SCIENCE HYGIENE

Patents Applicationslast 30 patents

  • Information Patent Application

    System and method for determining filter condition
    • Publication number 20030070544
    • Publication date Apr 17, 2003
    • Hamilton Beach/Proctor-Silex, Inc.
    • Patrick T. Mulvaney
    • B01 - PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL