Patents by Inventor Chee Chin Liew

Chee Chin Liew 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).

  • Hyperbranched polyester with a hydrophobic nucleus for solubilizing poorly soluble active substances
    Patent number: 10174156
    Abstract: The invention provides a composition comprising an active ingredient with a maximum solubility in water at 20° C. of 10 g/l, and a hyperbranched polyester based on a hydrophobic dicarboxylic acid and a trifunctional alcohol. The invention further relates to the hyperbranched polyester mentioned, to a process for preparation thereof and to the use thereof for solubilizing an active ingredient with a maximum solubility in water at 20° C. of 10 g/l in aqueous solutions.
    Type: Grant
    Filed: December 15, 2010
    Date of Patent: January 8, 2019
    Assignee: BASF SE
    Inventors: Holger Türk, Monika Haberecht, Hiroe Yamada, Bernd Bruchmann, Daniel Schönfelder, Michael Ishaque, Ulrike Troppmann, Joachim Clauss, Chee Chin Liew
  • HYPERBRANCHED POLYESTER WITH A HYDROPHOBIC NUCLEUS FOR SOLUBILIZING POORLY SOLUBLE ACTIVE SUBSTANCES
    Publication number: 20120309626
    Abstract: The invention provides a composition comprising an active ingredient with a maximum solubility in water at 20° C. of 10 g/l, and a hyperbranched polyester based on a hydrophobic dicarboxylic acid and a trifunctional alcohol. The invention further relates to the hyperbranched polyester mentioned, to a process for preparation thereof and to the use thereof for solubilizing an active ingredient with a maximum solubility in water at 20° C. of 10 g/l in aqueous solutions.
    Type: Application
    Filed: December 15, 2010
    Publication date: December 6, 2012
    Applicant: BASF SE
    Inventors: Holger Türk, Monika Haberecht, Hiroe Yamada, Bernd Bruchmann, Daniel Schönfelder, Michael Ishaque, Ulrike Troppmann, Joachim Clauss, Chee Chin Liew
  • Use of homo- and copolymers for stabilizing active ingredient formulations
    Publication number: 20100179198
    Abstract: The present invention relates to the use of specific homo- and copolymers P for the stabilizing of organic active compounds in aqueous compositions or formulations comprising surface-active substances.
    Type: Application
    Filed: July 4, 2008
    Publication date: July 15, 2010
    Inventors: Murat Mertoglu, Holger Tuerk, Chee Chin Liew, Ulrike Troppmann, Reiner Weiler, Guenter Oetter, Cedric Dieleman, Winfried Mayer, Lars Vicum