Patents by Inventor Jeffrey A. Hohenfeld

Jeffrey A. Hohenfeld 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).

  • Fire doors and method of locating fire hose
    Patent number: 4914864
    Abstract: A fire door having a hatch disposed in the lowermost outer corner of the same adapted to swing open to provide sufficient space for the passage of fire hose through the door, the hatch being a minor portion of the door whereby the major portion of the door can be kept closed after the placement of hose through the door.
    Type: Grant
    Filed: September 13, 1988
    Date of Patent: April 10, 1990
    Inventor: Jeffrey A. Hohenfeld