Patents by Inventor Jean-Michel Zellweger

Jean-Michel Zellweger 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).

  • Granulates useful for preparing effervescent pesticide tablets
    Patent number: 5516529
    Abstract: An effervescent granulate consisting of a solid water-soluble acidic substance, potassium carbonate and/or potassium hydrogen carbonate and one or more water-insoluble substances that are capable of absorbing water, a pesticidal active ingredient concentrate that is in the form of effervescent tablets and contains the effervescent granulate, and the preparation of the effervescent granulate and of the pesticidal active ingredient concentrate are described.
    Type: Grant
    Filed: July 12, 1993
    Date of Patent: May 14, 1996
    Inventor: Jean-Michel Zellweger