Patents by Inventor Walter E. Ranua

Walter E. Ranua 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: D261391
    Type: Grant
    Filed: February 8, 1980
    Date of Patent: October 20, 1981
    Assignee: The Cornelius Company
    Inventors: Walter E. Ranua, William B. Mackrell
  • Patent number: D271368
    Type: Grant
    Filed: February 5, 1982
    Date of Patent: November 15, 1983
    Assignee: The Cornelius Company
    Inventors: Terrance G. Belland, William B. MacKrell, Walter E. Ranua