Patents by Inventor Manfred Lehman

Manfred Lehman 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).

  • Benzofuran derivatives and their pharmaceutical use
    Patent number: 4411910
    Abstract: Benzofuran derivatives of the formula ##STR1## wherein V is hydrogen or acetyl,X is oxo or two hydrogen atoms,R.sub.1 and R.sub.2 each independently is hydrogen, fluorine, or chlorine, and--A--B-- is --O--CH.sub.2 -- or --CH.sub.2 --O--,possess valuable pharmacological properties.
    Type: Grant
    Filed: March 11, 1982
    Date of Patent: October 25, 1983
    Assignee: Schering Aktiengesellschaft
    Inventors: Eberhard Schroeder, deceased, Manfred Lehman, Clemens Rufer