Patents by Inventor Birgit Middelhauve

Birgit Middelhauve 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).

  • Patent number: 5856290
    Abstract: A disinfectant-containing hard surface cleaner composition having increased bacteria count-reducing efficacy is provided by adding thereto a mixture of an alkyl or alkenyl oligoglycoside and certain C.sub.8 -C.sub.18 alkyl ethers.
    Type: Grant
    Filed: August 20, 1996
    Date of Patent: January 5, 1999
    Assignee: Henkel Kommanditgesellschaft auf Aktien
    Inventors: Gregory van Buskirk, Karl-Heinz Disch, Carsten Friese, Eva Kiewert, Birgit Middelhauve
  • 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
  • Patent number: 5780416
    Abstract: A water-containing cleaning composition having a pH value of 3.0 to 6.5 containing 0.1% to 50% by weight of at least one alkyl glycoside corresponding to formula (I):R.sup.1 --O--?G!.sub.xwherein R.sup.1 is a branched or linear, saturated or unsaturated alkyl group containing 6 to 11 carbon atoms, G is a glycose or xylose unit and x is a number of 1 to 10, 0. 1 % to 30% by weight of at least one fatty alcohol ether corresponding to formula (II) ##STR1## in which R.sup.2 is an alkyl radical containing 6 to 12 carbon atoms, m is a number of 0.5 to 3.0 and n is a number of 4.0 to 12.0, based on the weight of the composition, and which is free from hydrotropes based on organic acids.
    Type: Grant
    Filed: October 10, 1996
    Date of Patent: July 14, 1998
    Assignee: Henkel Kommanditgesellschaft auf Aktien
    Inventors: Eva Kiewert, Ronald Menke, Birgit Middelhauve
  • Patent number: 5591376
    Abstract: A process for cleaning hard surfaces comprising contacting the hard surfaces with a composition containing:(a) from 0.1 to 50% by weight, based on the weight of the composition, of an alkyl polyglucoside having the general formula R O Z.sub.x wherein R is C.sub.8-10, O is oxygen, x is an integer from 1 to 6, and Z is a sugar unit;(b) from 0.001 to 30% by weight, based on the weight of the composition, of a C.sub.6-16 fatty alcohol alkoxylate having an HLB value greater than 10;(c) from 0.001 to 15% by weight, based on the weight of the composition, of a C.sub.8-22 fatty acid; and(d) the balance up to 100% water.
    Type: Grant
    Filed: November 29, 1994
    Date of Patent: January 7, 1997
    Assignee: Henkel Kommanditgesellschaft auf Aktien
    Inventors: Eva Kiewert, Peter Jeschke, Birgit Middelhauve, Giuseppe Carrer
  • Patent number: 5576284
    Abstract: A disinfectant-containing hard surface cleaner composition having increased bacteria count-reducing efficacy is provided by adding thereto a mixture of an alkyl or alkenyl oligoglycoside and certain C.sub.8 -C.sub.18 alkyl ethers.
    Type: Grant
    Filed: September 26, 1994
    Date of Patent: November 19, 1996
    Assignee: Henkel Kommanditgesellschaft auf Aktien
    Inventors: Gregory van Buskirk, Karl-Heinz Disch, Carsten Friese, Eva Kiewert, Birgit Middelhauve