Patents by Inventor James D. Fredrickson

James D. Fredrickson 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).

  • Process for increasing the filling capacity of tobacco
    Patent number: RE30693
    Abstract: Tobacco is impregnated with a volatile organic liquid and then heated by rapidly passing a stream of hot gas in contact therewith to volatilize the liquid and expand the tobacco. The hot tobacco contacting gas is at a temperature at least 30.degree. F. above the boiling point of the said liquid.
    Type: Grant
    Filed: March 17, 1975
    Date of Patent: August 4, 1981
    Assignee: Reynolds Leasing Corporation
    Inventor: James D. Fredrickson