Patents by Inventor Hans-Ju Schmidt

Hans-Ju Schmidt 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).

  • Stabilized aqueous solutions of 3-isothiazolones
    Patent number: 5286871
    Abstract: Stabilized aqueous solutions of one or more 3-isothiazolones of the general Formula I or II ##STR1## are given, characterized in that they contain at least 0.1 wt. % taken on the total solution of a 3-isothiazolone, of a hydroperoxide-free organic and/or manganese-free inorganic oxidizing agent, as well as optionally a stabilizer for the oxidizing agent.
    Type: Grant
    Filed: April 14, 1992
    Date of Patent: February 15, 1994
    Assignee: Thor Chemi GmbH
    Inventor: Hans-Ju Schmidt