Patents by Inventor Geoffrey P. Gray

Geoffrey P. Gray 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).

  • Method for determining the nutritional value of vegetable materials
    Patent number: 5173430
    Abstract: In a method for determining the dry matter content and nutritional value of moist vegetable material, such as silage, liquor is expressed from a sample of known quantity by applying thereto a reproducible pressure regime, the quantity of expressed liquor is measured, and the expressed liquor is analyzed for parameters, such as pH, ammonia, lactic acid, free sugar and alpha-amino nitrogen, from which the nutritional value can be estimated by regression. The nutritional value of silage can be expressed in terms of its fermentability in the rumen. The invention includes a portable facility for use in `on farm` analysis of silage to determine its nutritional value.
    Type: Grant
    Filed: January 22, 1991
    Date of Patent: December 22, 1992
    Inventors: David J. Edwards, Philip J. Evans, Christopher P. Freeman, Geoffrey P. Gray, Robert E. Matthews, Clifford A. Smith, Richard S. Thom