Patents by Inventor Yak-Fa Cheung

Yak-Fa Cheung 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).

  • Perhydro-1,4-thiazepin-5-one and perhydro-1,4-thiazocin-5-one derivatives as antihypertensives
    Patent number: 4594341
    Abstract: There are disclosed perhydro-1,4-thiazepin-5-one and perhydro-1,4-thiazocin-5-one derivatives and related compounds which are useful as angiotensin converting enzyme inhibitors and as antihypertensives.
    Type: Grant
    Filed: April 29, 1985
    Date of Patent: June 10, 1986
    Assignee: Merck & Co., Inc.
    Inventors: Yak-Fa Cheung, Eugene D. Thorsett, Arthur A. Patchett