Patents by Inventor Robert Craig Anderson

Robert Craig Anderson 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).

  • Tobacco based smoking material
    Patent number: 4002176
    Abstract: Thermal degradation of tobacco by heating at above 100.degree., suitably 100.degree.-300.degree. C in presence of a catalyst until the weight of the residue is less than 90% of the weight of the original tobacco improves the smoke-flavor, although similar heating in absence of catalyst fails to produce this effect. The degraded tobacco material is an improved material suitable for smoking mixtures wherein the degraded tobacco material possesses an enhanced tobacco flavor as compared to untreated tobacco.
    Type: Grant
    Filed: August 13, 1974
    Date of Patent: January 11, 1977
    Assignee: Imperial Chemical Industries Limited
    Inventor: Robert Craig Anderson
  • Smoking mixture
    Patent number: 3965911
    Abstract: Tobacco substitute based smoking mixture including protein as an ingredient to give the smoke from the mixture of flavor resembling that of tobacco.
    Type: Grant
    Filed: May 17, 1974
    Date of Patent: June 29, 1976
    Assignee: Imperial Chemical Industries Limited
    Inventors: Robert Craig Anderson, Robert Arthur Hall
  • Smoking mixtures
    Patent number: 3943942
    Abstract: Tobacco substitutes containing alkaline inorganic matter such as to produce a slurry pH of 8.5 to 13, especially sodium carbonate producing a slurry pH of 9 to 10, and blends of such substitutes with tobacco.
    Type: Grant
    Filed: June 21, 1974
    Date of Patent: March 16, 1976
    Assignee: Imperial Chemical Industries Limited
    Inventors: Robert Craig Anderson, Alan James Herd