Patents by Inventor Detlev Worsch

Detlev Worsch 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-hydroxy-3-halo-5-nitropyridines
    Patent number: 5144038
    Abstract: A process for the production of 2-hydroxy-3-halo-5-nitropyridines, in which a 5-halo-6-hydroxynicotinic acid is nitrated in the end product. The resultant pyridines form valuable intermediate products for active ingredient synthesis.
    Type: Grant
    Filed: July 17, 1991
    Date of Patent: September 1, 1992
    Assignee: Lonza Ltd.
    Inventor: Detlev Worsch