Patents by Inventor Arthur C. Eldridge

Arthur C. Eldridge 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).

  • Production of defatted soybean products by supercritical fluid extraction
    Patent number: 4493854
    Abstract: The raw grassy and bitter principles in soybeans are reduced to acceptable levels for purposes of human consumption without significant degradation of the nutritional properties. This result is achieved by a lipid extraction process in which raw soybean material is treated with carbon dioxide under carefully controlled supercritical conditions. Of particular importance are the moisture content of the bean material as well as the pressure, temperature, and contact time of the carbon dioxide extractant.
    Type: Grant
    Filed: September 20, 1983
    Date of Patent: January 15, 1985
    Assignee: The United States of America as represented by the Secretary of Agriculture
    Inventors: John P. Friedrich, Arthur C. Eldridge