Patents by Inventor Benoit EMPRIN

Benoit EMPRIN 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).

  • Optical lens having an interferential coating and a multilayered system for improving abrasion-resistance
    Patent number: 12704662
    Abstract: The invention relates to an optical lens comprising a substrate having a front main face and a rear main face, said rear main face of which being successively coated with: —(A) a first high refractive index sheet having a refractive index higher than 1.55, which does not comprise any TaaOs layer, —(B) a second low refractive index sheet having a refractive index of 1.55 or less in direct contact with the former sheet, —(C) a third high refractive index sheet having a refractive index higher than 1.
    Type: Grant
    Filed: June 21, 2022
    Date of Patent: August 11, 2026
    Assignee: Essilor International
    Inventors: Frédéric Guillain, Benoit Emprin, Nicolas Maitre, William Trottier-Lapointe
  • OPTICAL LENS HAVING AN INTERFERENTIAL COATING AND A MULTILAYERED SYSTEM FOR IMPROVING ABRASION-RESISTANCE
    Publication number: 20250284034
    Abstract: The invention relates to an optical lens comprising a substrate having a front main face and a rear main face, said rear main face of which being successively coated with: —(A) a first high refractive index sheet having a refractive index higher than 1.55, which does not comprise any TaaOs layer, —(B) a second low refractive index sheet having a refractive index of 1.55 or less in direct contact with the former sheet, —(C) a third high refractive index sheet having a refractive index higher than 1.
    Type: Application
    Filed: June 21, 2022
    Publication date: September 11, 2025
    Inventors: Frédéric GUILLAIN, Benoit EMPRIN, Nicolas MAITRE, William TROTTIER-LAPOINTE
  • Optical article having an interferential coating with an improved abrasion-resistance
    Patent number: 12092908
    Abstract: The invention relates to an optical article comprising a substrate having at least one main face successively coated with a layer comprising chromium, silicon and oxygen, a monolayer sub-layer having a thickness higher than or equal to 100 nm, a multilayer interferential coating comprising a stack of at least one high refractive index layer having a refractive index higher than 1.55 and at least one low refractive index layer having a refractive index of 1.55 or less, wherein the ratio (I) is higher than or equal to 1.5, and the optical article has a Bayer value determined in accordance with the ASTM F735-81 standard higher than or equal to 7.
    Type: Grant
    Filed: October 17, 2019
    Date of Patent: September 17, 2024
    Assignee: Essilor International
    Inventors: Benoit Emprin, Nicolas Maitre, Sébastien Chiarotto
  • Optical Article Having an Interferential Coating with an Improved Abrasion-Resistance
    Publication number: 20210397025
    Abstract: The invention relates to an optical article comprising a substrate having at least one main face successively coated with a layer comprising chromium, silicon and oxygen, a monolayer sub-layer having a thickness higher than or equal to 100 nm, a multilayer interferential coating comprising a stack of at least one high refractive index layer having a refractive index higher than 1.55 and at least one low refractive index layer having a refractive index of 1.55 or less, wherein the ratio (I) is higher than or equal to 1.5, and the optical article has a Bayer value determined in accordance with the ASTM F735-81 standard higher than or equal to 7.
    Type: Application
    Filed: October 17, 2019
    Publication date: December 23, 2021
    Inventors: Benoit EMPRIN, Nicolas MAITRE, Sébastien CHIAROTTO