Patents by Inventor Raymond E. Kelling

Raymond E. Kelling 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: 3993784
    Abstract: In the salting of vegetables, such as cucumbers, control of fermentation using brine acidity as the monitor and continually and rapidly determining brine acidity with tris(hydroxymethyl)aminomethane as a standard.
    Type: Grant
    Filed: May 11, 1972
    Date of Patent: November 23, 1976
    Assignee: The United States of America as represented by the Department of Agriculture
    Inventors: Thomas A. Bell, John L. Etchells, Raymond E. Kelling, James L. Olsen