Patents by Inventor Ulf Back

Ulf Back 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).

  • Patent number: D293250
    Type: Grant
    Filed: December 2, 1985
    Date of Patent: December 15, 1987
    Assignee: Asea AB
    Inventors: Herbert Kaufmann, Ulf Back