Patents by Inventor John Leazer

John Leazer 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).

  • Process for the synthesis of 3,5-bis(trifluoromethyl)benzoic acid
    Patent number: 6489507
    Abstract: The present invention is concerned with a novel process for the preparation of 3,5-bis(trifluoromethyl)benzoic acid (CAS 725-89-3). This compound is useful as an intermediate in the synthesis of compounds which possess pharmacological activity, in particular, as substance P (neurokinin-1) receptor antagonists.
    Type: Grant
    Filed: June 8, 2000
    Date of Patent: December 3, 2002
    Assignee: Merck & Co., Inc.
    Inventors: Raymond Cvetovich, John Leazer