Patents by Inventor Theodore A. Sempf

Theodore A. Sempf 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).

  • Apparatus and system for providing secure storage
    Patent number: D686750
    Type: Grant
    Filed: March 20, 2012
    Date of Patent: July 23, 2013
    Assignee: Trachte Building Systems, Inc.
    Inventors: Joshua J. Kroeplien, Theodore A. Sempf
  • Apparatus for providing secure storage
    Patent number: D752242
    Type: Grant
    Filed: June 14, 2013
    Date of Patent: March 22, 2016
    Assignee: Trachte Building Systems, Inc.
    Inventors: Joshua J. Kroeplien, Theodore A. Sempf
  • Apparatus for providing secure storage
    Patent number: D798470
    Type: Grant
    Filed: March 18, 2016
    Date of Patent: September 26, 2017
    Assignee: Trachte Building Systems, Inc.
    Inventors: Joshua J. Kroeplien, Theodore A. Sempf