Patents by Inventor Richard Alan Zeleny

Richard Alan Zeleny 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 manufacture of N(mercaptomethyl) phthalimide S-(O,O-dimethyl phosphorodithioate
    Patent number: 4013685
    Abstract: Disclosed herein is a novel process for the manufacture of N(mercaptomethyl) phthalimide S-(O,O-dimethyl phosphorodithioate) wherein increased production in a series of given size reaction vessels is achieved, which process comprises operating at a higher temperature and at a higher product-to-solvent ratio than hereinbefore practiced.
    Type: Grant
    Filed: March 10, 1975
    Date of Patent: March 22, 1977
    Assignee: Stauffer Chemical Company
    Inventors: Shen Fu Liang, Richard Alan Zeleny