Patents by Inventor Richard Boulware

Richard Boulware 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).

  • Recovery of benzo-c-phenanthridine alkaloids
    Patent number: 4767861
    Abstract: A method for extracting benzo-c-phenanthridine alkaloids from plants of the families Papaveracease Fumariaciae, and Berberidacae, comprising extracting ground plant material with acidulated methanol precipitating the extract with an acid salt which is soluble in methanol, redissolving the precipitated salt in water, adding sufficient acid to form a precipitate, and collecting the precipitate so formed. The benzo-c-phenanthridine alkaloids have valuable properties as antimicrobials as well as in treating mouth odors, gingivitis, and periodontitis.
    Type: Grant
    Filed: August 4, 1987
    Date of Patent: August 30, 1988
    Assignee: Vipont Laboratories
    Inventor: Richard Boulware