Patents by Inventor Shijie SHEN

Shijie SHEN 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).

  • Liquid sunscreen compositions which both deposit and lather well
    Patent number: 6399045
    Abstract: The present invention teaches liquid sunscreen compositions in which level of surfactant is higher than level at which the sunscreen component(s) are still soluble in the surfactant in which they are used; and which comprise minimal levels of cationic polymer. Combination of cationic polymer (especially preferred surfactants and at minimum levels) and minimal levels of sunscreen lead to compositions with minimal levels of deposition and minimal SPF. Further, the compositions also maintain good lather.
    Type: Grant
    Filed: March 10, 2000
    Date of Patent: June 4, 2002
    Assignee: Unilever Home & Personal Care USA a division of Conopco, Inc.
    Inventors: Leslie Jo Morgan, Sudhakar Puvvada, Liang Sheng Tsaur, Michael Paul Aronson, Andrew Lam, Shiji Shen, Ernest Weatherley Macaulay
  • Liquid sunscreen compositions which both deposit and lather well
    Patent number: 6224852
    Abstract: The present invention teaches liquid sunscreen compositions in which level of surfactant is higher than level at which the sunscreen component(s) are still soluble in the surfactant in which they are used; and which comprise minimal levels of cationic polymer. Combination of cationic polymer (especially preferred surfactants and at minimum levels) and minimal levels of sunscreen lead to compositions with minimal levels of deposition and minimal SPF. Further, the compositions also maintain good lather.
    Type: Grant
    Filed: April 23, 1999
    Date of Patent: May 1, 2001
    Assignee: Unilever Home & Personal Care USA
    Inventors: Leslie Jo Morgan, Sudhakar Puvvada, Liang Sheng Tsaur, Michael Paul Aronson, Andrew Lam, Shiji Shen, Ernest Weatherly Macauley
  • Aqueous solution compositions comprising polymer hydrogel compositions
    Patent number: 6066613
    Abstract: The invention relates to hydrogel dispersions/particles capable of trapping water insoluble beneficial agent, yet capable of disintegrating smoothly to impart desirable in use characteristics.
    Type: Grant
    Filed: November 6, 1997
    Date of Patent: May 23, 2000
    Assignee: Lever Brothers Company
    Inventors: Liang Sheng Tsaur, Shiji Shen, Margaret Jobling, Michael Paul Aronson
  • Process for making aqueous solution compositions comprising polymer hydrogel compositions
    Patent number: 5759969
    Abstract: The invention relates to a process for making hydrogel dispersions/particles capable of trapping water insoluble beneficial agent, yet capable of disintegrating smoothly to impart desirable in use characteristics.
    Type: Grant
    Filed: August 27, 1996
    Date of Patent: June 2, 1998
    Assignee: Lever Brothers Company, Division of Conopco, Inc.
    Inventors: Liang Sheng Tsaur, Shiji Shen, Margaret Jobling, Michael Paul Aronson
  • Aqueous solution compositions comprising polymer hydrogel compositions
    Patent number: 5726138
    Abstract: The invention relates to hydrogel dispersions/particles capable of trapping water insoluble beneficial agent, yet capable of disintegrating smoothly to impart desirable in use characteristics.
    Type: Grant
    Filed: August 26, 1996
    Date of Patent: March 10, 1998
    Assignee: Lever Brothers Company, Division of Conopco, Inc.
    Inventors: Liang Sheng Tsaur, Shiji Shen, Margaret Jobling, Michael Paul Aronson
  • Detergent composition
    Patent number: 5661189
    Abstract: An aqueous liquid cleansing and moisturising composition comprising a surface active agent selected from anionic, nonionic, zwitterionic and cationic surface active agents and mixtures thereof; an benefit agent having a weight average particle size in the range 50 to 500 microns; and a thickening agent. The thickening agent is added to the benefit agent in amount from 1 to 50% wt, based on the benefit agent.
    Type: Grant
    Filed: June 6, 1995
    Date of Patent: August 26, 1997
    Assignee: Lever Brothers Company, Division of Conopco, Inc.
    Inventors: Ailsa Pauline Hilary Grieveson, Margaret Jobling, Shiji Shen, Liang Sheng Tsaur
  • Compositions comprising capsule comprising oil surrounding hydrophobic or hydrophilic active and polymeric shell surrounding oil
    Patent number: 5441660
    Abstract: The present invention relates to liquid detergent compositions which contain capsules which capsules protect sensitive ingredients therein. The capsule, in addition to a protecting sensitive ingredients, contains an oil dispersion containing the active and a polymer shell surrounding the dispersion. The oil is defined by its ability to meet a tripartite definition and the shell is a water soluble or water dispersible polymer as defined.
    Type: Grant
    Filed: November 12, 1993
    Date of Patent: August 15, 1995
    Assignee: Lever Brothers Company
    Inventors: Liang S. Tsaur, Shiji Shen, Michael P. Aronson, David J. Pocalyko
  • Capsule comprising oil surrounding hydrophobic or hydrophilic active and polymeric shell surrounding oil
    Patent number: 5434069
    Abstract: The present invention relates to a novel capsule for protecting sensitive ingredients in detergent compositions. The capsule, in addition to a protected sensitive ingredient, contains an oil dispersion containing the active and a polymer shell surrounding the dispersion. The oil is defined by its ability to meet a tripartite definition and the shell is a water soluble or water dispersible polymer as defined.
    Type: Grant
    Filed: November 12, 1993
    Date of Patent: July 18, 1995
    Assignee: Lever Brothers Company, Division of Conopco, Inc.
    Inventors: Liang S. Tsaur, Shiji Shen, Michael P. Aronson, David J. Pocalyko