Patents by Inventor Wei-Mei Sun

Wei-Mei Sun 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).

  • Publication number: 20070081965
    Abstract: Rinse-off hair conditioning compositions with improved opacity and reflectivity are disclosed which comprise, in addition to water, C16 to C22 alkyl trimethylammonium salt, C16 to C22 dialkoylethyl dimethylammonium salt, C12 to C22 fatty material and alkali metal halide.
    Type: Application
    Filed: November 8, 2004
    Publication date: April 12, 2007
    Inventors: Nancy Daou, Gaelle Frere, Wei-Mei Sun
  • Patent number: 6613316
    Abstract: The present invention relates to an aqueous opaque hair conditioner which comprises a monoalkyl quat from C14 to higher Carbon chain lengths (preferably C16 to C22) and a dialkyl quat which is a mixture of C16, C16 dialkyl quat and C18, C18 dialkyl quat. Also included is an amount of fatty alcohol to opacify the conditioner. Optionally, a silicone compound may be included. The monoalkyl quat may be in a ratio to the dialkyl quat of about 15:1 to about 2:1. The carbon chain lengths within the dialkyl quat are present in a weight ratio of about 1:3 to about 3:1 of C16,C16 to C18, C18. The fatty alcohol may be present in an amount from about 1% to about 10%.
    Type: Grant
    Filed: October 22, 2001
    Date of Patent: September 2, 2003
    Assignee: Unilever Home & Personal Care USA, division of Conopco, Inc.
    Inventors: Wei-Mei Sun, Teresa Jolanta Dowell
  • Publication number: 20020106343
    Abstract: The present invention relates to an aqueous opaque hair conditioner which comprises a monoalkyl quat from C14 to higher Carbon chain lengths (preferably C16 to C22) and a dialkyl quat which is a mixture of C16, C16 dialkyl quat and C18, C18 dialkyl quat. Also included is an amount of fatty alcohol to opacify the conditioner. Optionally, a silicone compound may be included. The monoalkyl quat may be in a ratio to the dialkyl quat of about 15:1 to about 2:1. The carbon chain lengths within the dialkyl quat are present in a weight ratio of about 1:3 to about 3:1 of C16,C16 to C18, C18. The fatty alcohol may be present in an amount from about 1% to about 10%.
    Type: Application
    Filed: October 22, 2001
    Publication date: August 8, 2002
    Applicant: Unilever Home & Personal Care USA, Division of Conopco, Inc.
    Inventors: Wei-Mei Sun, Teresa Jolanta Dowell
  • Publication number: 20020015685
    Abstract: A rinse-off water-in-oil-in-water (W1/O/W2) multiple emulsion composition comprising:
    Type: Application
    Filed: May 11, 2001
    Publication date: February 7, 2002
    Applicant: Unilever Home & Personal Care USA, Division of Conopco, Inc.
    Inventors: Fe P Pascual, Gerald Patrick Newell, Wei-Mei Sun, Tirucherai V Vasudevan
  • Patent number: 6235275
    Abstract: The invention relates to opaque hair conditioner compositions that have a lamellar dispersion in the internal aqueous phase and which are water in oil emulsions that comprise: a) about 40 to 95% aqueous phase comprising (i) water and (ii) a cationic surfactant, capable of forming lamellar dispersion, present at about 0.1 to about 10% of the aqueous phase; b) about 0.5 to about 30% oil, comprising a volatile silicone compound, a nonvolatile silicone compound, a volatile hydrocarbon compound, a nonvolatile hydrocarbon compound, or a mixture thereof; c) about 0.1 to about 20% silicone surfactant; and d) optionally di-long chain alkyl amines having C10 to C22 carbon chains, long chain fatty alcohols having C10 to C22 carbon chains, or ethoxylated fatty alcohols.
    Type: Grant
    Filed: June 25, 1999
    Date of Patent: May 22, 2001
    Assignee: Unilever Home & Personal Care USA, a division of Conopco, Inc.
    Inventors: Liang Bin Chen, Wei-Mei Sun
  • Patent number: 6022547
    Abstract: Rinse-off, water-in-oil-in-water multiple emulsion compositions are disclosed. The multiple emulsion compositions comprise an external aqueous phase optionally incorporating an emulsifier and/or a second topically-active compound. The internal phase comprises a primary water-in-oil emulsion, wherein the primary emulsion comprises a first topically-active compound, a surfactant phase, an oil phase, and water.
    Type: Grant
    Filed: June 28, 1996
    Date of Patent: February 8, 2000
    Assignee: Helene Curtis, Inc.
    Inventors: Craig A. Herb, Liang Bin Chen, Judy Chung, Michelle A. Long, Wei Mei Sun, Gerald P. Newell, Trefor A. Evans, Kimberly Kamis, Richard M. Brucks
  • Patent number: 5968490
    Abstract: Gelled or solid topically-effective compositions comprising a topically-active compound, like an antiperspirant compound; a borate crosslinker; a surfactant, and preferably, a nonionic surfactant or nonionic surfactant blend; a carrier comprising water; and, optionally, a hydrophobic compound, are disclosed.
    Type: Grant
    Filed: September 11, 1998
    Date of Patent: October 19, 1999
    Assignee: Helene Curtis, Inc.
    Inventors: Wei Mei Sun, Zhu-ning Ma, Maximo M. Panitch, Ramiro Galleguillos
  • Patent number: 5942216
    Abstract: Water-in-oil-in-water multiple emulsion compositions are disclosed. The multiple emulsion compositions comprise an external aqueous phase optionally incorporating a surfactant system capable of forming liquid crystals as an emulsifier. The internal phase comprises a primary water-in-oil emulsion, wherein the primary emulsion comprises a first topically-active compound, a surfactant phase, an oil phase, and water.
    Type: Grant
    Filed: February 21, 1997
    Date of Patent: August 24, 1999
    Assignee: Helene Curtis, Inc.
    Inventors: Craig A. Herb, Liang Bin Chen, Judy B. Chung, Michelle A. Long, Wei Mei Sun
  • Patent number: 5833965
    Abstract: Gelled or solid topically-effective compositions comprising a topically-active compound, like an antiperspirant compound; a borate crosslinker; a surfactant, and preferably, a nonionic surfactant or nonionic surfactant blend; a carrier comprising water; and, optionally, a hydrophobic compound, are disclosed.
    Type: Grant
    Filed: May 8, 1996
    Date of Patent: November 10, 1998
    Assignee: Helene Curtis, Inc.
    Inventors: Wei Mei Sun, Zhu-ning Ma, Maximo M. Panitch, Ramiro Galleguillos
  • Patent number: 5672340
    Abstract: Gelled or solid topically-effective compositions comprising a topically-active compound, like an antiperspirant compound; a borate crosslinker; a surfactant, and preferably, a nonionic surfactant or nonionic surfactant blend; a carrier comprising water; and, optionally, a hydrophobic compound, are disclosed.
    Type: Grant
    Filed: March 7, 1996
    Date of Patent: September 30, 1997
    Assignee: Helene Curtis, Inc.
    Inventors: Wei Mei Sun, Zhu-ning Ma, Maximo M. Panitch, Ramiro Galleguillos
  • Patent number: 5656280
    Abstract: Water-in-oil-in-water multiple emulsion compositions are disclosed. The multiple emulsion compositions comprise an external aqueous phase optionally incorporating a surfactant system capable of forming liquid crystals as an emulsifier. The internal phase comprises a primary water-in-oil emulsion, wherein the primary emulsion comprises a first topically-active compound, a surfactant phase, an oil phase, and water.
    Type: Grant
    Filed: December 6, 1994
    Date of Patent: August 12, 1997
    Assignee: Helene Curtis, Inc.
    Inventors: Craig A. Herb, Liang Bin Chen, Judy Chung, Michelle A. Long, Wei Mei Sun, Gerald P. Newell, Trefor A. Evans, Kimberly Kamis, Richard M. Brucks
  • Patent number: 5547661
    Abstract: Gelled or solid topically-effective compositions comprising a topically-active compound, like an antiperspirant compound; a borate crosslinker; a surfactant, and preferably, a nonionic surfactant or nonionic surfactant blend; a carrier comprising water; and, optionally, a hydrophobic compound, are disclosed.
    Type: Grant
    Filed: December 14, 1994
    Date of Patent: August 20, 1996
    Assignee: Helene Curtis, Inc.
    Inventors: Wei-Mei Sun, Zhu-ning Ma, Maximo M. Panitch, Ramiro Galleguillos
  • Patent number: 5534246
    Abstract: Roll-on or gel topically-effective compositions comprising a topically-active compound, a silicon-free surfactant or silicon-free surfactant blend having an HLB value of about 0.1 to about 10, an organic phase comprising a volatile silicone compound or a volatile hydrocarbon compound, and water.
    Type: Grant
    Filed: August 29, 1994
    Date of Patent: July 9, 1996
    Assignee: Helene Curtis, Inc.
    Inventors: Craig A. Herb, Wei-Mei Sun, Priscilla M. Walling, Susan A. Stiffe