Patents by Inventor Karl Shiqing Wei

Karl Shiqing Wei 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: 6183766
    Abstract: The present invention relates to compositions for sanitizing and moisturizing skin surfaces. Such compositions an effective amount of sanitizing agent to kill or reduce the growth of microorganisms; a lipophilic skin moisturizing agent; an effective amount of a degreasing agent selected from the group consisting of: silicones, wax materials, powders, fluorochemicals and mixtures thereof; optionally a thickener, a humectant, a perfume; and water. The skin sanitizing compositions of the present invention are suitable for use in leave-on or rinse-off products.
    Type: Grant
    Filed: May 27, 1999
    Date of Patent: February 6, 2001
    Assignee: The Procter & Gamble Company
    Inventors: Mark Richard Sine, Karl Shiqing Wei, David Andrew Jakubovic, Cheyne P. Thomas, Michael Thomas Dodd, Christopher Dean Putman
  • Patent number: 5891833
    Abstract: A process for preparing liquid personal cleansing compositions which provides enhanced perfume deposition on the skin and which provides increased on-skin fragrance longevity. The liquid personal cleansing compositions contain from about 0.01% to about 5% of a cationic polymer; from about 1% to about 80% of an anionic surfactant; from about 0.01% to about 5% of a volatile perfume; and water. The ratio of the cationic polymer to the anionic surfactant ranges from about 1:100 to about 1:2. The process involves first forming a premix comprising the cationic polymer, the volatile perfume and water, and then adding the premix to a personal cleansing base composition which comprises anionic surfactant and water.
    Type: Grant
    Filed: June 20, 1996
    Date of Patent: April 6, 1999
    Assignee: The Procter & Gamble Company
    Inventors: Karl Shiqing Wei, Louis Fay Wong, Mark Richard Sine, Timothy Woodrow Coffindaffer, Toan Trinh
  • Patent number: 5843875
    Abstract: Disclosed are liquid personal cleansing compositions comprising a specific surfactant component comprising an ethoxylated alkyl sulfate surfactant having from about 1 to about 8 moles of ethoxylation and an amphoteric surfactant, a select soluble cellulosic cationic organic polymer, and a volatile perfume.
    Type: Grant
    Filed: June 20, 1996
    Date of Patent: December 1, 1998
    Assignee: The Procter & Gamble Company
    Inventors: Karl Shiqing Wei, Louis Fay Wong, Mark Richard Sine, Timothy Woodrow Coffindaffer, Toan Trinh
  • Patent number: 5804538
    Abstract: Liquid personal cleansing compositions which provide enhanced perfume deposition on the skin and which provide increased on-skin fragrance longevity. The liquid personal cleansing compositions contain from about 0.5% to about 5% of a cationic material, from about 1% to about 80% of an anionic surfactant, from about 0.01 to about 5% of a volatile perfume, and water. The ratio of cationic polymer to the anionic surfactant ranges from about 1:15 to about 1:5.
    Type: Grant
    Filed: June 20, 1996
    Date of Patent: September 8, 1998
    Assignee: The Procter & Gamble Company
    Inventors: Karl Shiqing Wei, Louis Fay Wong, Mark Richard Sine, Timothy Woodrow Coffindaffer, Toan Trinh
  • Patent number: 5723420
    Abstract: Personal cleansing bar compositions which contain a fragrance-releasing complex and a bar carrier. The fragrance-releasing complex contains a hydrophilic inorganic porous fragrance carrier and a fragrance impregnated within the fragrance carrier. The ratio of the fragrance:fragrance carrier ranges from about 5:1 to about 1:10.
    Type: Grant
    Filed: March 4, 1996
    Date of Patent: March 3, 1998
    Assignee: The Procter & Gamble Company
    Inventors: Karl Shiqing Wei, Louis Fay Wong, Deborah Adamo Koehler, Mark Richard Sine