Patents by Inventor John E. B. Ransohoff

John E. B. Ransohoff 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).

  • Substituted alkenoic acid and its derivatives
    Patent number: 5246966
    Abstract: The new substituted alkenoic acid derivatives can be prepared by reacting the appropriate aldehyde with a phosphonium compound. The compounds have leukotriene antagonistic properties and can be incorporated into pharmaceutical compositions.
    Type: Grant
    Filed: December 30, 1991
    Date of Patent: September 21, 1993
    Assignee: Bayer Aktiengesellschaft
    Inventors: Heinrich Meier, John E. B. Ransohoff, Trevor S. Abram, Peter Norman, Tudhope Stephen R., Phillip J. Gardiner, Nigel J. Cuthbert, Hilary P. Francis