Patents by Inventor Charles B. Derringer

Charles B. Derringer 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).

  • Contact lenses with microchannels
    Patent number: 11947192
    Abstract: A contact lens comprising one or more microchannels for transport of liquid through the lens is provided. The contact lens can be made by contacting a curable composition with a microfiber that is insoluble in the curable composition; curing the curable composition to provide a polymeric lens body with the microfiber embedded therein; and contacting the polymeric lens body with a solvent to dissolve the microfiber.
    Type: Grant
    Filed: December 6, 2022
    Date of Patent: April 2, 2024
    Assignee: COOPERVISION INTERNATIONAL LIMITED
    Inventors: Sourav Saha, Victoria Rogers, Charles B. Derringer, Sarah Tao, Szeshen Chuah, Yuan Sun, Yuwen Liu, Nancy Keir, Tim Warren, Matthew S. Linn, Lu Jiang
  • Contact Lenses with Microchannels
    Publication number: 20230107664
    Abstract: A contact lens comprising one or more microchannels for transport of liquid through the lens is provided. The contact lens can be made by contacting a curable composition with a microfiber that is insoluble in the curable composition; curing the curable composition to provide a polymeric lens body with the microfiber embedded therein; and contacting the polymeric lens body with a solvent to dissolve the microfiber.
    Type: Application
    Filed: December 6, 2022
    Publication date: April 6, 2023
    Applicant: CooperVision International Limited
    Inventors: Sourav Saha, Victoria Rogers, Charles B. Derringer, Sarah Tao, Szeshen Chuah, Yuan Sun, Yuwen Liu, Nancy Keir, Tim Warren, Matthew S. Linn, Lu Jiang
  • Contact lenses with microchannels
    Patent number: 11550166
    Abstract: A contact lens comprising one or more microchannels for transport of liquid through the lens is provided. The contact lens can be made by contacting a curable composition with a microfiber that is insoluble in the curable composition; curing the curable composition to provide a polymeric lens body with the microfiber embedded therein; and contacting the polymeric lens body with a solvent to dissolve the microfiber.
    Type: Grant
    Filed: May 27, 2020
    Date of Patent: January 10, 2023
    Assignee: COOPERVISION INTERNATIONAL LIMITED
    Inventors: Sourav Saha, Victoria Rogers, Charles B. Derringer, Sarah Tao, Szeshen Chuah, Yuan Sun, Yuwen Liu, Nancy Keir, Tim Warren, Matthew S. Linn, Lu Jiang
  • Contact Lenses with Microchannels
    Publication number: 20200387009
    Abstract: A contact lens comprising one or more microchannels for transport of liquid through the lens is provided. The contact lens can be made by contacting a curable composition with a microfiber that is insoluble in the curable composition; curing the curable composition to provide a polymeric lens body with the microfiber embedded therein; and contacting the polymeric lens body with a solvent to dissolve the microfiber.
    Type: Application
    Filed: May 27, 2020
    Publication date: December 10, 2020
    Applicant: CooperVision International Holding Company, LP
    Inventors: Sourav Saha, Victoria Rogers, Charles B. Derringer, Sarah Tao, Szeshen Chuah, Yuan Sun, Yuwen Liu, Nancy Keir, Tim Warren, Matthew S. Linn, Lu Jiang
  • Gas-permeable membrane
    Publication number: 20080184683
    Abstract: Gas-permeable membranes comprising a microporous film and a coating on the microporous film, the coating being obtained by coating the microporous film with a liquid coating composition comprising a polymer and hollow polymeric particles dispersed in the composition, and then solidifying the coating. The gas-permeable membrane has a reduced ratio of carbon dioxide permeability to oxygen permeability.
    Type: Application
    Filed: January 15, 2008
    Publication date: August 7, 2008
    Inventors: Raymond Clarke, Charles B. Derringer
  • Gas-permeable membrane
    Patent number: 7329452
    Abstract: Gas-permeable membranes comprising a microporous film and a coating on the microporous film, the coating being obtained by coating the microporous film with a liquid coating composition comprising a polymer and hollow polymeric particles dispersed in the composition, and then solidifying the coating. The gas-permeable membrane has a reduced ratio of carbon dioxide permeability to oxygen permeability.
    Type: Grant
    Filed: December 19, 2003
    Date of Patent: February 12, 2008
    Assignee: Apio, Inc.
    Inventors: Raymond Clarke, Charles B. Derringer
  • Gas-permeable membrane
    Publication number: 20040131810
    Abstract: Gas-permeable membranes comprising a microporous film and a coating on the microporous film, the coating being obtained by coating the microporous film with a liquid coating composition comprising a polymer and hollow polymeric particles dispersed in the composition, and then solidifying the coating. The gas-permeable membrane has a reduced ratio of carbon dioxide permeability to oxygen permeability.
    Type: Application
    Filed: December 19, 2003
    Publication date: July 8, 2004
    Inventors: Raymond Clarke, Charles B. Derringer