Patents by Inventor Petra Kolditz

Petra Kolditz 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: 9770019
    Abstract: A kit for the production of an antimicrobial foam includes: a) a liquid composition which includes a1)one or more bispyridinium alkane and a2)one or more surfactants selected from non-ionic surfactants, amphoteric surfactants and cation-active surfactants, wherein the composition is formulated so that a foam can be produced therefrom, and b) a device for producing the foam from the composition. By using the bispyridinium alkanes the foam stability of liquid and surfactant-containing compositions is increased.
    Type: Grant
    Filed: November 18, 2014
    Date of Patent: September 26, 2017
    Assignee: L'AIR LIQUIDE, SOCIETE ANONYME POUR L'ETUDE ET L'EXPLOITATION DES PROCEDES GEORGES CLAUDE
    Inventors: Petra Kolditz, Sabine Behrends, Anja Behrendt, Andreas Dettmann, Thomas Spuida
  • Patent number: 9446071
    Abstract: Antimicrobial compositions containing (i) at least one zinc compound selected from zinc salt and zinc oxide; (ii) at least one glycerine monoalkyl ether, R—O—CH2—CHOH—CH2O, wherein R is a branched or unbranched C1-C24 alkyl group that can be substituted with one or more hydroxy and/or C1-C4 alkoxy group(s) and/or the alkyl chain can be interrupted by up to four oxygen atoms; (iii) at least one antioxidant; and optionally (iv) one or more alkanediols; the weight ratio of (ii) to (iii) is at least 10:1. The compositions are used in cosmetics and pharmaceuticals and have broad anti-microbial activity, in particular against Pseudomonas aeruginosa, at active contents of only about 3 wt. %.
    Type: Grant
    Filed: May 1, 2013
    Date of Patent: September 20, 2016
    Assignee: L'AIR LIQUIDE SOCIETE ANONYME POUR L'ETUDE ET L'EXPLOITATION DES PROCEDES GEORGE CLAUDE
    Inventors: Petra Kolditz, Klaus Weber, Wolfgang Beilfuss, Carsten Bungenstock, Sabine Herweg
  • Publication number: 20150141469
    Abstract: A kit for the production of an antimicrobial foam includes: a) a liquid composition which includes a1)one or more bispyridinium alkane and a2)one or more surfactants selected from non-ionic surfactants, amphoteric surfactants and cation-active surfactants, wherein the composition is formulated so that a foam can be produced therefrom, and b) a device for producing the foam from the composition. By using the bispyridinium alkanes the foam stability of liquid and surfactant-containing compositions is increased.
    Type: Application
    Filed: November 18, 2014
    Publication date: May 21, 2015
    Applicant: L'AIR LIQUIDE, SOCIETE ANONYME POUR L'ETUDE ET L'EXPLOITATION DES PROCEDES GEORG
    Inventors: Petra KOLDITZ, Sabine BEHRENDS, Anja BEHRENDT, Andreas DETTMANN, Thomas SPUIDA
  • Patent number: 8841349
    Abstract: A stabilizer composition having (a) one or more 1- or 2-(C1- to C24-alkyl) glycerol ethers (glycerol monoalkyl ethers) and (b) a mixture of at least two different aromatic alcohols (b1, b2) chosen from the groups of i) aryloxyalkanols, ii) arylalkanols and iii) oligoalkanol aryl ethers, where the two different aromatic alcohols belong to different groups i), ii) and iii).
    Type: Grant
    Filed: December 3, 2004
    Date of Patent: September 23, 2014
    Assignee: Air Liquide Sante (International)
    Inventors: Wolfgang Beilfuss, Ralf Gradtke, Petra Kolditz, Klaus Weber
  • Patent number: 8765795
    Abstract: A preservative which comprises a) one or more isothiazolones and b) one or more glycerol monoalkyl ethers, and the use of the preservative for microbicidal finishing of cosmetic and pharmaceutical products.
    Type: Grant
    Filed: November 7, 2011
    Date of Patent: July 1, 2014
    Assignee: Air Liquide Sante (International)
    Inventors: Ralf Gradtke, Wolfgang Beilfuss, Petra Kolditz
  • Publication number: 20120053215
    Abstract: A preservative which comprises a) one or more isothiazolones and b) one or more glycerol monoalkyl ethers, and the use of the preservative for microbicidal finishing of cosmetic and pharmaceutical products.
    Type: Application
    Filed: November 7, 2011
    Publication date: March 1, 2012
    Applicant: AIR LIQUIDE SANTE (INTERNATIONAL)
    Inventors: Ralf Gradtke, Wolfgang Beilfuss, Petra Kolditz
  • Patent number: 8076363
    Abstract: The invention relates to a preservative which 5 comprises a) one or more isothiazolones and b) one or more glycerol monoalkyl ethers, to the use of the preservatives for microbicidal finishing of cosmetic and pharmaceutical products, and to corresponding microbicidally finished products.
    Type: Grant
    Filed: March 2, 2006
    Date of Patent: December 13, 2011
    Assignee: Air Liquide Sante (International)
    Inventors: Ralf Gradtke, Wolfgang Beilfuss, Petra Kolditz
  • Patent number: 7781466
    Abstract: The invention relates to a preservative comprising at least one isothiazolone, at least one quaternary ammonium compound, and at least one stabilizer selected from the group of sulphite salts, hydrogen sulphite salts, sulphite-releasing compounds and hydrogen-sulphite-releasing compounds, the presence of algicidal triazine being ruled out. The preservative inhibits the growth of fungi, algae and bacteria on or in alkaline coating compositions. The invention furthermore relates to a process for the preparation of the preservative, to its use in a coating composition, and to the preserved composition.
    Type: Grant
    Filed: September 21, 2006
    Date of Patent: August 24, 2010
    Assignee: Air Liquide Sante (International)
    Inventors: Petra Kolditz, Klaus Weber, Ralf Gradtke, Wolfgang Beilfuss
  • Publication number: 20090012135
    Abstract: The invention relates to a preservative which 5 comprises a) one or more isothiazolones and b) one or more glycerol monoalkyl ethers, to the use of the preservatives for microbicidal finishing of cosmetic and pharmaceutical products, and to corresponding microbicidally finished products.
    Type: Application
    Filed: March 2, 2006
    Publication date: January 8, 2009
    Applicant: AIR LIQUIDE SANTE (INTERNATIONAL)
    Inventors: Ralf Gradtke, Wolfgang Beilfuss, Petra Kolditz
  • Publication number: 20070093538
    Abstract: The invention relates to a preservative comprising at least one isothiazolone, at least one quaternary ammonium compound, and at least one stabilizer selected from the group of sulphite salts, hydrogen sulphite salts, sulphite-releasing compounds and hydrogen-sulphite-releasing compounds, the presence of algicidal triazine being ruled out. The preservative inhibits the growth of fungi, algae and bacteria on or in alkaline coating compositions. The invention furthermore relates to a process for the preparation of the preservative, to its use in a coating composition, and to the preserved composition.
    Type: Application
    Filed: September 21, 2006
    Publication date: April 26, 2007
    Inventors: Petra Kolditz, Klaus Weber, Ralf Gradtke, Wolfgang Beilfuss
  • Publication number: 20050154067
    Abstract: The invention relates to a stabilizer composition which comprises (a) one or more 1- or 2-(C1- to C24-alkyl) glycerol ethers (glycerol monoalkyl ethers) and (b) a mixture of at least two different aromatic alcohols (b1, b2) chosen from the groups of i) aryloxyalkanols, ii) arylalkanols and iii) oligoalkanol aryl ethers, where the two different aromatic alcohols belong to different groups i), ii) and iii).
    Type: Application
    Filed: December 3, 2004
    Publication date: July 14, 2005
    Inventors: Wolfgang Beilfuss, Ralf Gradtke, Petra Kolditz, Klaus Weber