Patents by Inventor Donald L. Shumaker

Donald L. Shumaker 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).

  • Fish attractant
    Patent number: 5071659
    Abstract: A superior fish attractant is formed which is particulate in nature by mixing together animal feed and flavoring for animal feed.
    Type: Grant
    Filed: August 24, 1989
    Date of Patent: December 10, 1991
    Inventor: Donald L. Shumaker