Patents by Inventor AnBen Hwang

AnBen Hwang 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: 5856283
    Abstract: A solid composition comprisinga. a cleansing effective amount of an anionic surfactant or mixture thereof,b. an alcohol ethoxycarboxylic acid of the formulaR--(OCH.sub.2 CH.sub.2).sub.n --O CH.sub.2 COOHwherein R is an alkyl of an average of about 8 to 20 carbon atoms inclusive and n is a number of 1 to about 20,c. a carbanilide antibacterial agent in antibacterial effective quantities wherein component b is in sufficient quantities to solubilize the carbanilide antibacterial agent.
    Type: Grant
    Filed: August 14, 1997
    Date of Patent: January 5, 1999
    Assignee: Colgate-Palmolive Co.
    Inventors: Syed Husain Abbas, Ben Gu, AnBen Hwang, Ravi Subramanyam
  • Patent number: 5843876
    Abstract: A cleansing composition which comprises a cleansing effective amount of a long chain alkyl or alkenyl containing surfactant or mixtures thereof and a color stabilizing effective amount of a compound selected from the group consisting of ##STR1## wherein R.sub.1, R.sub.2, R.sub.3, R.sub.4, R.sub.5, R.sub.6, R.sub.7 and R.sub.8 are the same or different and are isopropyl or tertiary butyl, ##STR2## wherein R.sub.9 and R.sub.10 are the same or different and are isopropyl or tertiary butyl and n is about 8 to about 20, or ##STR3## wherein R.sub.11, R.sub.12, R.sub.13, R.sub.14, R.sub.15 and R.sub.16 are the same or different and are isopropyl or tertiary butyl.
    Type: Grant
    Filed: January 29, 1997
    Date of Patent: December 1, 1998
    Assignee: Colgate-Palmolive Co.
    Inventors: Richard Payne, AnBen Hwang, Ravi Subramanyam
  • Patent number: 5840670
    Abstract: A cleansing composition which comprises a cleansing effective amount of one or a mixture of a surfactant and a color stabilizing effective amount of a compound of the formula ##STR1## wherein R.sub.1, R.sub.2, R.sub.3, R.sub.4, R.sub.5 and R.sub.6 are the same or different and are isopropyl or tertiary butyl.
    Type: Grant
    Filed: January 29, 1997
    Date of Patent: November 24, 1998
    Assignee: Colgate-Palmolive Co.
    Inventors: Richard Payne, AnBen Hwang, Ravi Subramanyam
  • Patent number: 5821206
    Abstract: A cleansing composition which comprises a cleansing effective amount of one of a mixture of a surfactant chain and a color stabilizing effective amount of a compound of the formula ##STR1## wherein R1 and R2 are the same or different and are isopropyl or tertiary butyl and n is an integer of about 8 to about 20.
    Type: Grant
    Filed: January 29, 1997
    Date of Patent: October 13, 1998
    Assignee: Colgate Palmolive Company
    Inventors: Richard Payne, AnBen Hwang, Ravi Subramanvam
  • Patent number: 5441663
    Abstract: A solid composition comprisinga. about 5 to 85 wt % of an acylisethionate salt,b. about 90 to 5 wt % of soap, andc. an effective amount of a metal chelating agent consisting solely of an agent selected from the group consisting of ethylene diamine tetra acetic acid, water soluble salts of said acid, and mixtures thereof, said composition having a pH of from about 7.2 to 10.
    Type: Grant
    Filed: December 20, 1993
    Date of Patent: August 15, 1995
    Assignee: Colgate-Palmolive Co.
    Inventors: Ravi Subramanyam, Ben Gu, AnBen Hwang