Patents by Inventor Hans-J{umlaut over (u)}rgen Köhle

Hans-J{umlaut over (u)}rgen Köhle 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).

  • Fabric softeners with improved color-retaining action
    Patent number: 6180593
    Abstract: The invention relates to fabric softeners with color-retaining action comprising: 3-25%, by weight, of component (A) consisting of Aa) 75-97%, by weight, of quaternary ammonium compounds of the general formula (I) and 3-25%, by weight, of at least one other compound Ab); (B) 0.5-6%, by weight, of customary auxiliaries and additives; and (C) ad 100%, by weight, of water.
    Type: Grant
    Filed: August 19, 1999
    Date of Patent: January 30, 2001
    Assignee: Goldschmidt Rewo GmbH & Co. KG
    Inventors: Michael Fender, Hans-J{umlaut over (u)}rgen Köhle, Anja Wilhelm