Patents by Inventor Joseph Sidney Wortham

Joseph Sidney Wortham 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).

  • Pelleting aid for agricultural products
    Patent number: 4034120
    Abstract: The pelleting of fibrous agricultural material, such as beet pulp is facilitated by the incorporation of a mixture of expanded vermiculite and/or finely divided vermiculite ore with an organic material which may be animal fat or a vegetable oil product such as cottonseed oil.
    Type: Grant
    Filed: October 28, 1975
    Date of Patent: July 5, 1977
    Assignee: W. R. Grace & Co.
    Inventors: Joseph Sidney Wortham, Ernest Carlisle Johnson