Patents by Inventor Allan H. Willinger

Allan H. Willinger 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).

  • Aquarium filter
    Patent number: D246724
    Type: Grant
    Filed: December 6, 1976
    Date of Patent: December 20, 1977
    Assignee: Willinger Bros., Inc.
    Inventor: Allan H. Willinger
  • Aquarium air pump
    Patent number: D247436
    Type: Grant
    Filed: January 17, 1977
    Date of Patent: March 7, 1978
    Assignee: Willinger Bros., Inc.
    Inventors: Allan H. Willinger, Harding W. Willinger, Monte L. Levin