Patents by Inventor Nils E. Ek

Nils E. Ek 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: D252746
    Type: Grant
    Filed: June 12, 1978
    Date of Patent: August 28, 1979
    Inventor: Nils E. Ek