Patents by Inventor Gregory J. Dunn

Gregory J. Dunn 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).

  • Method of resistance welding
    Patent number: 4365134
    Abstract: After measuring the bulk resistance the surface of high strength low alloy steel material is treated to form a high resistance coating on its surface. When resistance welding the material the coating permits weld formation without significant expulsion or excessive electrode force over a wide range of operating conditions.
    Type: Grant
    Filed: December 31, 1980
    Date of Patent: December 21, 1982
    Assignee: Massachusetts Institute of Technology
    Inventors: Thomas W. Eagar, Joseph G. Kaiser, Gregory J. Dunn