Patents by Inventor Laurens R. Boissevain

Laurens R. Boissevain 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).

  • Pharmaceutically active compounds and their preparation and compositions
    Patent number: 3940381
    Abstract: A product is described that is of value for treatment of, for example, gastric ulcer. It contains iron or glycyrrhizinate with most of the glycyrrhizinic moieties being insoluble in water. A method of making it, involving prolonged heating, and pharmaceutical compositions and methods, are also described.
    Type: Grant
    Filed: August 13, 1973
    Date of Patent: February 24, 1976
    Inventor: Laurens R. Boissevain