Patents by Inventor Richard E. Huettemann

Richard E. Huettemann 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).

  • Utero-evacuant extracts from plant substances
    Patent number: 4076805
    Abstract: A method of purifying utero-evacuant extracts from the zoapatle plant is described. The method involves the purification of extracts from the zoapatle plant which contain an active principle utilizing chromatographic techniques.
    Type: Grant
    Filed: May 27, 1976
    Date of Patent: February 28, 1978
    Assignee: Ortho Pharmaceutical Corporation
    Inventors: Jose Luis Mateos, Luis Noriega, Richard E. Huettemann, Ramesh M. Kanojia
  • Purification of utero-evacuant extracts from plant substances
    Patent number: 3996132
    Abstract: A method of purifying utero-evacuant extracts from the zoapatle plant is described. The method involves the purification of extracts from the zoapatle plant which contain an active principle utilizing chromatographic techniques.
    Type: Grant
    Filed: July 18, 1974
    Date of Patent: December 7, 1976
    Assignee: Ortho Pharmaceutical Corporation
    Inventors: Jose Luis Mateos, Luis Noriega, Richard E. Huettemann, Ramesh Maganlal Kanojia
  • Isolation of utero-evacuant substances from plant extracts
    Patent number: 3986952
    Abstract: A method of obtaining utero-evacuant substances from the zoapatle plant is described. The method involves the isolation and purification of biologically active compounds from the zoapatle plant by chromatography over silicic acid impregnated with silver nitrate.
    Type: Grant
    Filed: November 17, 1975
    Date of Patent: October 19, 1976
    Assignee: Ortho Pharmaceutical Corporation
    Inventors: Ramesh M. Kanojia, Richard E. Huettemann