Patents by Inventor Robert J. Krohn

Robert J. Krohn 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).

  • Drink coaster
    Patent number: D439805
    Type: Grant
    Filed: April 24, 2000
    Date of Patent: April 3, 2001
    Assignee: You/Nique Picture Frames Inc.
    Inventor: Robert J. Krohn
  • Baby picture frames
    Patent number: D393749
    Type: Grant
    Filed: June 2, 1997
    Date of Patent: April 28, 1998
    Assignee: You/Nique Picture Frames, Inc.
    Inventor: Robert J. Krohn
  • Graduation picture frame
    Patent number: D403513
    Type: Grant
    Filed: October 7, 1997
    Date of Patent: January 5, 1999
    Assignee: You/Nique Picture Frames Inc.
    Inventor: Robert J. Krohn
  • Ice skate picture frame
    Patent number: D423795
    Type: Grant
    Filed: July 20, 1999
    Date of Patent: May 2, 2000
    Assignee: You/Nique Picture Frames Inc.
    Inventor: Robert J. Krohn
  • Ice skate blade cleaner
    Patent number: D434889
    Type: Grant
    Filed: March 20, 2000
    Date of Patent: December 5, 2000
    Assignee: You/Nique Picture Frames, Inc.
    Inventor: Robert J. Krohn