Patents by Inventor Marlene D. Drag

Marlene D. Drag 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).

  • Sulfurpentafluorophenylpyrazoles for controlling ectoparasitic infestations
    Patent number: 6136838
    Abstract: Sulfurpentafluorophenylpyrazoles of formula I are highly potent against flea and tick infestations in animals. The compounds may be formulated to provide products with long duration of action and low potential for inducing vomition and other adverse reactions in treated animals.
    Type: Grant
    Filed: March 18, 1999
    Date of Patent: October 24, 2000
    Assignee: Merck & Co., Inc.
    Inventors: Rey T. Chern, Jeffrey N. Clark, Marlene D. Drag, Joel R. Zingerman