Patents by Inventor Richard Obarski

Richard Obarski 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).

  • Key restricting device
    Patent number: 5651279
    Abstract: A voluntary key restricting device attached to the interior side of an entry door to prevent the unlocking of a cylinder locking dead bolt mechanism by any outside key or burglar cylinder lock picking device. This device will prevent a dead bolt knob from rotating regardless of the angular locked position of the knob without the addition or removal of supplemental parts. It is self contained, requires no tools to install, requires no modifications to an existing door and has a built in child deterrent locking feature.
    Type: Grant
    Filed: August 11, 1995
    Date of Patent: July 29, 1997
    Assignee: Richard W. Obarski
    Inventors: Edward Berton, Richard Obarski