Patents by Inventor John Abraham Crawford

John Abraham Crawford 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).

  • Coatings for protection against corrosion in adhesively bonded steel joints
    Patent number: 9422459
    Abstract: An apparatus includes a first steel component having a first surface, a second steel component having a second surface, a corrosion resistant coating on at least one of the first and second surfaces, and an adhesive bonding the first and second components together. The corrosion resistant coating can be electrically conductive.
    Type: Grant
    Filed: July 27, 2011
    Date of Patent: August 23, 2016
    Assignee: Northrop Grumman Systems Corporation
    Inventors: John Douglas Weir, John Abraham Crawford