Patents by Inventor Robert Frydrych

Robert Frydrych 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).

  • Locks configured to deter cylinder removal
    Patent number: 10876321
    Abstract: Certain embodiments described herein are directed to locks that include one or more cylinder members effective to deter removal of a lock cylinder. In some configurations, the cylinder member is configured to engage a circumferential surface of the lock cylinder to deter removal of the lock cylinder on circumferential rotation of the lock cylinder. In other instances, the cylinder member is configured to etch the lock cylinder upon circumferential rotation of the lock cylinder.
    Type: Grant
    Filed: October 23, 2014
    Date of Patent: December 29, 2020
    Inventor: Robert Frydrych
  • Locks inserts and lock assemblies using them
    Patent number: 10017958
    Abstract: Certain embodiments described herein are directed to lock inserts that are configured to prevent removal of a key from a lock assembly comprising the lock insert when the lock assembly is in an unlocked position. The lock insert can be configured to permit removal of the key when the lock assembly is in a locked position.
    Type: Grant
    Filed: May 11, 2015
    Date of Patent: July 10, 2018
    Inventor: Robert Frydrych