Patents by Inventor John David McCall Shearer

John David McCall Shearer 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).

  • DISPLAY ASSEMBLY FOR AN ELECTRONIC DEVICE THAT INCLUDES A BLUE LIGHT PROTECTIVE TRANSPARENCY
    Publication number: 20230020025
    Abstract: A display screen assembly is provided comprising a blue light protection transparency. The transparency comprises an additive, such that the blue light protection transparency blocks greater than 50% of light of a wavelength range of 380 nm to 418 nm from passing through the blue light protection transparency as measured by ultraviolet-visible spectroscopy; and the blue light protection transparency blocks 20% to 45% of light of a wavelength range of greater than 418 nm to 430 nm from passing through the blue light protection transparency as measured by ultraviolet-visible spectroscopy. Additionally, the blue light protection transparency has a total visible light transmittance greater than 65% as measured according to ASTM D1003-07 Procedure B.
    Type: Application
    Filed: December 18, 2020
    Publication date: January 19, 2023
    Applicant: PPG Industries Ohio, Inc.
    Inventors: Nicolas Benjamin Duarte, Fatima Sophia Emami, John David McCall Shearer, Maria Christina Baker