Patents by Inventor Khiet Hien Diec

Khiet Hien Diec 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: 9072916
    Abstract: The invention relates to a cosmetic formulation with improved effectiveness and reduced stickiness, comprising at least one activated aluminum antiperspirant active ingredient, at least one alpha-hydroxycarboxylic acid and water.
    Type: Grant
    Filed: April 27, 2005
    Date of Patent: July 7, 2015
    Assignee: BEIERSDORF AG
    Inventors: Ulrike Schulz, Lara Terstegen, Torben Zwiener, Yvonne Eckhard, Linda Engfeldt, Heike Miertsch, Thomas Nuebel, Claudia Rohde, Michael Urban, Gordon Christ, Katja Warnke, Khiet Hien Diec
  • Patent number: 7811594
    Abstract: The invention is a crosslinked water-in-oil emulsion that is useful in cosmetic and pharmaceutical applications. The emulsion includes a water phase, oil phase, water-in-oil emulsifier, and one or more crosslinkers. The crosslinkers that are useful in the invention include molecules having at least one hydrophilic region and at least one hydrophobic region. The invention also includes a process for preparing the crosslinked emulsion.
    Type: Grant
    Filed: September 28, 2004
    Date of Patent: October 12, 2010
    Assignee: Beiersdorf AG
    Inventors: Jörg Schreiber, Khiet Hien Diec
  • Patent number: 7282197
    Abstract: A cosmetic or dermatological composition for preventing excessive odor and sweat secretion by skin, comprising an optically translucent to transparent, substantially alcohol-free oil-in-water type emulsion gel which comprises a polyethoxylated and/or a polypropoxylated O/W emulsifier, a polyol and a antiperspirant. This abstract is neither intended to define the invention disclosed in this specification nor intended to limit the scope of the invention in any way.
    Type: Grant
    Filed: July 16, 2004
    Date of Patent: October 16, 2007
    Assignee: Beiersdorf AG
    Inventors: Khiet Hien Diec, Ulrich Kux
  • Patent number: 7282196
    Abstract: The present invention is an antiperspirant product, comprising: (a) an oil-in water microemulsion including an oil phase and a water phase and being substantially free of alcohol, said microemulsion further comprising: one or more oil-in-water emulsifiers selected from the group consisting of polyethoxylated oil-in-water emulsifiers, polypropoxylated oil-in-water emulsifiers and polyethoxylated and polypropoxylated oil-in-water emulsifiers, wherein said microemulsion has a total emulsifier content of less than 20% by weight, based on the total weight of the microemulsion, and one or more antiperspirants, having a total content of 5 to 40% by weight, based on the total weight of the microemulsion, wherein said microemulsion is prepared by bringing a mixture comprising the water phase, the oil phase, and the one or more oil-in-water emulsifiers to a temperature within or above the phase-inversion temperature range, and subsequently cooling it to room temperature, and (b) a pump atomizer, comprising: a co
    Type: Grant
    Filed: April 6, 2004
    Date of Patent: October 16, 2007
    Assignee: Beiersdorf AG
    Inventors: Ulrich Kux, Yvonne Cierpisz, Kurt Mählmann, Norbert Menzel, Khiet Hien Diec
  • Publication number: 20040253187
    Abstract: The present invention is an antiperspirant product, comprising:
    Type: Application
    Filed: April 6, 2004
    Publication date: December 16, 2004
    Applicant: Beiersdorf AG
    Inventors: Ulrich Kux, Yvonne Cierpisz, Kurt Mahlmann, Norbert Menzel, Khiet Hien Diec
  • Publication number: 20040247547
    Abstract: The invention is an antiperspirant product, comprising
    Type: Application
    Filed: April 6, 2004
    Publication date: December 9, 2004
    Applicant: Beiersdorf AG
    Inventors: Ulrich Kux, Yvonne Cierpisz, Kurt Mahlmann, Norbert Menzel, Khiet Hien Diec
  • Patent number: 6667044
    Abstract: Microemulsion gels a) based on water in oil type microemulsions, comprising an oil phase which is essentially composed of not easily volatile components, an aqueous phase containing one or more polyethoxylated W/O emulsifiers and/or one or more polypropoxylated W/O emulsifiers and/or one or more polyethoxylated and polypropoxylated W/O emulsifiers and/or one or more monoesters, diesters, polyesters of polyols as W/O emulsifiers and/or one or more monoethers, diethers, polyethers of polyols as W/O emulsifiers and/or one or more dimethicone copolyols as W/O emulsifiers and/or one or more fatty alcohols or fatty acids as W/O emulsifiers and/or one or more sorbitan esters as W/O emulsifiers and/or one or more methyl glucose esters as W/O emulsifiers, and also comprising if desired one or more O/W emulsifiers, obtained in such a way that a mixture of basic components comprising an aqueous phase, an oil phase, one or more inventive emulsifiers is produced, being the HLB value of the emulsifier or emulsifier combina
    Type: Grant
    Filed: June 18, 1999
    Date of Patent: December 23, 2003
    Assignee: Beiersdorf AG
    Inventors: Khiet Hien Diec, Wolfgang Meier, Jörg Schreiber
  • Patent number: 6613338
    Abstract: Lipsticks, antiacne sticks, sunscreen sticks and eyeshadow sticks, with a high water content, characterized in that they comprise (a) a lipid phase, which comprises (a1) at least one oil component (a2) at least one wax component (a3) optionally other substances soluble or dispersible in the lipid phase, (b) an aqueous phase, which comprises (b1) from 30 to 85% by weight of water, based on the total weight of the stick composition and (b2) if desired, substances soluble or dispersible in water, (c) at least one active ingredient or several chosen from the active ingredients known for lipsticks, antiacne sticks, sunscreen sticks and eyeshadow sticks, (d) a W/O emulsifier or a mixture of two or more W/O emulsifiers, (e) one or more stabilizers, chosen from the group of substances of the general structure A—B—A′, where A and A′ are identical or different hydrophobic organic radicals, and B is a hydrophilic group, (f) if desired, further surface-active substances as coemulsifiers
    Type: Grant
    Filed: April 14, 1999
    Date of Patent: September 2, 2003
    Assignee: Beiersdorf AG
    Inventors: Jörg Schreiber, Khiet Hien Diec, Florian Wolf, Manfred Klier
  • Patent number: 6607733
    Abstract: Microemulsion gels based on microemulsions of the oil-in-water type in which the droplets of the discontinuous oily phase are joined to one another by one or more crosslinking substances, the molecules of which are distinguished by at least one hydrophilic region, which has an extension which is capable of bridging the customary distance between the microemulsion droplets, and by at least one hydrophobic region, which is capable of entering into a hydrophobic interaction with the microemulsion droplets.
    Type: Grant
    Filed: January 20, 1998
    Date of Patent: August 19, 2003
    Assignee: Beiersdorf AG
    Inventors: Khiet Hien Diec, Heinrich Gersbarlag, Manfred Klier, Jörg Schreiber, Florian Wolf
  • Patent number: 6468551
    Abstract: Microemulsion gels a) based on oil in water type, comprising an oil phase, substantially consisting of not easily volatile constituents, and an aqueous phase containing one or more O/W emulsifiers free from ethylene oxide and propylene oxide and possibly one or more additional O/W emulsifiers, an emulsifier content which is lower than 20 wt.
    Type: Grant
    Filed: June 18, 1999
    Date of Patent: October 22, 2002
    Assignee: Beiersdorf AG
    Inventors: Khiet Hien Diec, Wolfgang Meier, Jörg Schreiber