Patents by Inventor Hans-Werner Neumann

Hans-Werner Neumann 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).

  • Solubilizer mixture for the preparation of strongly alkaline aqueous solutions of non-ionic surfactants
    Patent number: 5565141
    Abstract: The use of a mixture of a long-chain, unsaturated, dimeric or oligomeric fatty acid with a C.sub.6 -C.sub.12 fatty acid as solubilizer for non-ionic surfactants in alkaline aqueous solutions.
    Type: Grant
    Filed: October 31, 1994
    Date of Patent: October 15, 1996
    Assignee: BASF Aktiengesellschaft
    Inventors: Richard Baur, Dieter Stoeckigt, Hans-Werner Neumann
  • Aqueous acidic cleaner formulations
    Patent number: 4965009
    Abstract: Aqueous acidic cleaner formulations contain, as essential components,(a) from 1 to 20% by weight of one or more nonionic surfactants based on oxyalkylated fatty alcohols, fatty acids, fatty amines, fatty amides or alkane-sulfonamides,(b) from 0.1 to 15% by weight of one or more polyetherpolyols which are obtainable by reacting a dihydric to hexahydric alcohol of 2 to 10 carbon atoms with an alkylene oxide of 2 to 4 carbon atoms and reacting this product with a 1,2-alkylene oxide or alkyl or alkenyl glycidyl ether of 8 to 30 carbon atoms and(c) from 1 to 40% by weight of one or more acids.
    Type: Grant
    Filed: April 27, 1989
    Date of Patent: October 23, 1990
    Assignee: BASF Aktiengesellschaft
    Inventors: Richard Baur, Dieter Stoeckigt, Hans-Werner Neumann, Hans-Helmut Goertz, Norbert Wagner