Patents by Inventor Joseph Niu

Joseph Niu 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).

  • Viscoelastic Surfactant Fluids and Related Methods of Use
    Publication number: 20070249505
    Abstract: Viscoelastic surfactant based aqueous fluid systems useful as thickening agents in various applications, e.g. to suspend particles produced during the excavation of geologic formations. The surfactants are zwitterionic/amphoteric surfactants such as dihydroxyl alkyl glycinate, alkyl ampho acetate or propionate, alkyl betaine, alkyl amidopropyl betaine and alkylimino mono- or di-propionates derived from certain waxes, fats and oils. The thickening agent is used in conjunction with an inorganic water-soluble salt or organic additive such as phthalic acid, salicylic acid or their salts.
    Type: Application
    Filed: June 27, 2007
    Publication date: October 25, 2007
    Inventors: Manilal Dahayanake, Jiang Yang, Joseph Niu, Paul-Joel Derian, Ruoxin Li, David Dino
  • Mild cold pearlizing concentrates
    Patent number: 5925604
    Abstract: Novel ultra-mild cold pearlizing concentrates provide pearlescent personal hair and skin compositions such as shampoos and beauty soaps with added luster and sheen.
    Type: Grant
    Filed: July 9, 1996
    Date of Patent: July 20, 1999
    Assignee: Rhodia Inc.
    Inventors: Pu Chen, Joseph Niu, Siew Fang Yoong
  • Mild cold pearlizing concentrates
    Patent number: 5560873
    Abstract: Novel ultra-mild cold pearlizing concentrates provide pearlescent personal hair and skin compositions such as shampoos and beauty soaps with added luster and sheen.
    Type: Grant
    Filed: December 30, 1994
    Date of Patent: October 1, 1996
    Inventors: Pu Chen, Joseph Niu, Siew F. Yoong
  • Gelled acidizer composition
    Patent number: 5162417
    Abstract: What is provided herein is a gelled acidizer composition which comprises an aqueous acid solution and a gelling agent therein which is a strongly swellable, moderately crosslinked polyvinylpyrrolidone polymers in the form of fine, white powders characterized by (a) an aqueous swelling parameter defined by its gel volume of about 15 to 150 ml/g of polymer and (b) a Brookfield viscosity in 5% aqueous solution of at least about 10,000 cps.
    Type: Grant
    Filed: April 1, 1991
    Date of Patent: November 10, 1992
    Assignee: ISP Investments Inc.
    Inventors: Jui-Chang Chuang, Jenn S. Shih, Joseph Niu