Patents by Inventor Richard Wegler

Richard Wegler 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 production of 2,3-dihydro-1,3-oxazinedione-(2,4)-compounds
    Patent number: 3931171
    Abstract: 2,3-DIHYDRO-1,3-OXAZINEDIONES-(2,4) ARE PRODUCED IN ONE STEP WITH GOOD YIELDS AND AT LOW REACTION TIMES BY REACTING A CORRESPONDING 1,3-DIOXINONE-(4) WITH AN APPROPRIATE ISOCYANATE AT TEMPERATURES OF E.G., 80.degree. TO 200.degree.C.Certain novel oxazinediones, useful as intermediates for making herbicides, are produced thereby.
    Type: Grant
    Filed: November 13, 1972
    Date of Patent: January 6, 1976
    Assignee: Bayer Aktiengesellschaft
    Inventors: Gerhard Jager, Hans-Jurgen Weinzelburger, Richard Wegler