Patents by Inventor Robert A. Merricks

Robert A. Merricks 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: 5025812
    Abstract: Denicotinized tobacco cut filler is provided by (i) extracting the cut filler with an aqueous denicotinized extract and thereby providing a mixture of aqueous extract and extracted cut filler, (ii) deliquoring the mixture of aqueous extract and extracted cut filler such that a certain level of tobacco extract remains in contact with the extracted cut filler, and (iii) drying the deliquored tobacco extract/extracted cut filler to provide a processed cut filler. Greater than 90 percent of the nicotine present in tobacco cut filler can be removed therefrom using such process steps.
    Type: Grant
    Filed: August 10, 1989
    Date of Patent: June 25, 1991
    Assignee: R. J. Reynolds Tobacco Company
    Inventors: Barry S. Fagg, Gary M. Dull, Richard G. Haberkern, Robert A. Merricks, John E. Stewart