Patents by Inventor Thomas Merrill Kuehn

Thomas Merrill Kuehn 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).

  • Door anti-latch device
    Patent number: 8177267
    Abstract: A door anti-latch device includes a base mounted to a door or a door frame, and a lever rotatably mounted to the base so that the lever can rotate about a pivot point from an open position to a latching position. The lever includes a handle end and an opposing stop end. The lever can be rotated between the open position and the latching position by moving the lever handle. The lever stop prevents the door from latching when the lever is in the open position and will not prevent the door from latching when the lever is in the latching position. The door anti-latch device can be moved from the open position to the latching position without leaving the room or opening the door.
    Type: Grant
    Filed: July 16, 2008
    Date of Patent: May 15, 2012
    Inventor: Thomas Merrill Kuehn
  • Door Anti-Latch Device
    Publication number: 20090039659
    Abstract: A door anti-latch device includes a base mounted to a door or a door frame, and a lever rotatably mounted to the base so that the lever can rotate about a pivot point from an open position to a latching position. The lever includes a handle end and an opposing stop end. The lever can be rotated between the open position and the latching position by moving the lever handle. The lever stop prevents the door from latching when the lever is in the open position and will not prevent the door from latching when the lever is in the latching position. The door anti-latch device can be moved from the open position to the latching position without leaving the room or opening the door.
    Type: Application
    Filed: July 16, 2008
    Publication date: February 12, 2009
    Inventor: Thomas Merrill Kuehn