Patents by Inventor Chun Yee Lew

Chun Yee Lew 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).

  • Polymeric materials
    Patent number: 10815341
    Abstract: A liquid formulation for addition to a polymeric material comprises a vehicle, an additive (e.g. a colourant) and carbonyl bis (1-caprolactan)). The liquid formulation may be used to colour melt spun fibre (e.g. PET or polyamide).
    Type: Grant
    Filed: September 16, 2016
    Date of Patent: October 27, 2020
    Assignee: COLORMATRIX HOLDINGS, INC.
    Inventors: Andrew Overend, David Loftus, Philip Winrow, Chun Yee Lew
  • Polymeric Materials
    Publication number: 20180230275
    Abstract: A liquid formulation for addition to a polymeric material comprises a vehicle, an additive (e.g. a colourant) and carbonyl bis (1-caprolactan)). The liquid formulation may be used to colour melt spun fibre (e.g. PET or polyamide).
    Type: Application
    Filed: September 16, 2016
    Publication date: August 16, 2018
    Applicant: Colormatrix Holdings, Inc.
    Inventors: Andrew Overend, David Loftus, Philip Winrow, Chun Yee Lew