Patents by Inventor Hans Ulrich Brechbuhler

Hans Ulrich Brechbuhler 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).

  • Control of certain insects of the order diptera with diamino-azido-s-triazines
    Patent number: 4000272
    Abstract: Insects of the families Musca, Aedes and Lucilia are combatted by application thereto of s-triazine derivatives of the formula ##STR1## wherein R.sub.2 is hydrogen, C.sub.1 -C.sub.3 alkyl, allyl or propargyl; R.sub.3 is hydrogen, methyl or ethyl; and R.sub.4 is hydrogen, C.sub.1 -C.sub.3 alkyl or propargyl.
    Type: Grant
    Filed: November 3, 1975
    Date of Patent: December 28, 1976
    Assignee: Ciba-Geigy Corporation
    Inventors: Hans Ulrich Brechbuhler, Rene Bosshard, Dagmar Berrer