Patents by Inventor Dermot C. O'Brien

Dermot C. O'Brien 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).

  • Personal organizer
    Patent number: D329745
    Type: Grant
    Filed: February 1, 1990
    Date of Patent: September 29, 1992
    Inventor: Dermot C. O'Brien
  • Personal organizer
    Patent number: D330115
    Type: Grant
    Filed: August 31, 1990
    Date of Patent: October 13, 1992
    Inventor: Dermot C. O'Brien