Patents by Inventor Mark McElfresh

Mark McElfresh has filed for patents to protect the following inventions. This listing includes patent applications that are pending as well as patents that have already been granted by the United States Patent and Trademark Office (USPTO).

  • Patent number: 5478505
    Abstract: An air-treating article for dispensing a volatilizable material, such as air freshener fragrance, into the atmosphere of an enclosed area, such as an automobile interior. The device includes a housing and a reservoir of the volatilizable material therein, and also includes a dual-configured, articulating attachment clip which enables attachment of the device at a high-air-flow station, such as the forced air vent grille of the automobile, or at a low-air-flow station, such as the sun visor of the vehicle. The device enables use of the consistent delivery rates of a low-density polyethylene membranes while at the same producing a higher delivery rate than normally achieved with such membranes.
    Type: Grant
    Filed: July 14, 1994
    Date of Patent: December 26, 1995
    Assignees: Jim F. Warner, Young C. Park, Charles A. Curtiss, Martin Bogenstaerter, Mark McElfresh
    Inventors: Mark McElfresh, Jim F. Warner, Young C. Park, Charles A. Curtiss, Martin Bogenstaerter