Patents by Inventor Juan-Carlos Wuhrmann

Juan-Carlos Wuhrmann 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).

  • Cleaning agent for hard surfaces based on cationic polymer soil-release compounds
    Patent number: 6251849
    Abstract: Cationic polymers comprising at least 40 mole percent monomer units of the formula (I): wherein n is 2 to 4, R1 is hydrogen or methyl, and R2, R3 and R4 independently are hydrogen, C1-4 alkyl or C1-4 alkenyl, and X− is an anion selected from the group consisting of halide anions and monoalkyl anions of sulfuric acid semiester are used as soil-release compounds in hard surface cleaners.
    Type: Grant
    Filed: December 18, 1998
    Date of Patent: June 26, 2001
    Assignee: Henkel Kommanditgesellschaft Auf Aktien
    Inventors: Rainer Jeschke, Ludwig Schieferstein, Katica Bocarac, Paul Birnbrich, Herbert Fischer, Rainer Kade, Eva Kiewert, Dieter Nickel, Horst-Dieter Speckmann, Juan-Carlos Wuhrmann
  • Fatty alcohol (ether) sulfates with improved low-temperature behavior
    Patent number: 5847183
    Abstract: Fatty alcohol (ether) sulfates which are obtained by co-sulfating mixtures of (a) C.sub.8-22 fatty alcohols and (b) C.sub.8-22 fatty alcohol ethoxylates containing an average of 1.9 to 3.9 ethylene oxide units in a ratio by weight of 20:80 to 80:20, and then neutralizing the mixtures thus co-sulfated with aqueous bases. The substances have distinctly improved low-temperature behavior in relation to ether sulfates with comparable degrees of ethoxylation, and are useful as components of surface-active compositions.
    Type: Grant
    Filed: November 15, 1996
    Date of Patent: December 8, 1998
    Assignee: Henkel Corporation
    Inventors: Wolfgang Schmidt, Karl-Heinz Schmid, Michael Neuss, Birgit Middelhauve, Juan Carlos Wuhrmann, Dagmar Zaika