Patents by Inventor William Michael Anthony Curtis

William Michael Anthony Curtis 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).

  • Composite particles comprising a hydrophobic dye and an amphiphilic block copolymer and use thereof in optical applications
    Patent number: 12116468
    Abstract: Composite particles comprising a hydrophobic dye and an amphiphilic block copolymer encapsulating the dye are disclosed. The dye exhibits absorbance peaks at one or more points in the ultraviolet, visible, or infrared regions of the electromagnetic spectrum. The particles are thus useful in optical applications, such as the preparation of contact lenses that screen out harmful radiation. In select embodiments, the dye is Zinc (II) 5, 10, 15, 20-(tetraphenyl) porphyrin and the copolymer is an acrylate or PEO copolymer that has been crosslinked.
    Type: Grant
    Filed: May 25, 2020
    Date of Patent: October 15, 2024
    Assignee: Coloursmith Labs Inc.
    Inventors: Gabrielle Masone, Morrgan Payne, Yuan Pang, Ian Desmond Conrod, William Michael Anthony Curtis, Nancy Kilcup, Roderick Angus Chisholm
  • COMPOSITE PARTICLES COMPRISING A HYDROPHOBIC DYE AND AN AMPHIPHILIC BLOCK COPOLYMER AND USE THEREOF IN OPTICAL APPLICATIONS
    Publication number: 20220235197
    Abstract: Composite particles comprising a hydrophobic dye and an amphiphilic block copolymer encapsulating the dye are disclosed. The dye exhibits absorbance peaks at one or more points in the ultraviolet, visible, or infrared regions of the electromagnetic spectrum. The particles are thus useful in optical applications, such as the preparation of contact lenses that screen out harmful radiation. In select embodiments, the dye is Zinc (II) 5, 10, 15, 20-(tetraphenyl) porphyrin and the copolymer is an acrylate or PEO copolymer that has been crosslinked.
    Type: Application
    Filed: May 25, 2020
    Publication date: July 28, 2022
    Inventors: Gabrielle Masone, Morrgan Payne, Yuan Pang, Ian Desmond Conrod, William Michael Anthony Curtis, Nancy Kilcup, Roderick Angus Chisholm