Patents by Inventor William Andrew Maxwell

William Andrew Maxwell 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).

  • OPHTHALMIC LENS HAVING MORPHED SINUSOIDAL PHASE SHIFT STRUCTURES
    Publication number: 20240134212
    Abstract: An ophthalmic lens includes an optic comprising an anterior surface, a posterior surface, and an optical axis. At least one of the anterior surface and the posterior surface has a surface profile including a base curvature and a plurality of morphed sinusoidal phase shift structures. The base curvature may correspond to a base optical power of the ophthalmic lens, and the morphed sinusoidal phase shift structures may be configured to extend depth of focus of the ophthalmic lens at intermediate or near viewing distances.
    Type: Application
    Filed: December 13, 2023
    Publication date: April 25, 2024
    Inventors: Xin Hong, William Andrew Maxwell, Xin Wei
  • Ophthalmic lens having morphed sinusoidal phase shift structures
    Patent number: 11892713
    Abstract: An ophthalmic lens includes an optic comprising an anterior surface, a posterior surface, and an optical axis. At least one of the anterior surface and the posterior surface has a surface profile including a base curvature and a plurality of morphed sinusoidal phase shift structures. The base curvature may correspond to a base optical power of the ophthalmic lens, and the morphed sinusoidal phase shift structures may be configured to extend depth of focus of the ophthalmic lens at intermediate or near viewing distances.
    Type: Grant
    Filed: November 17, 2020
    Date of Patent: February 6, 2024
    Assignee: Alcon Inc.
    Inventors: Xin Hong, William Andrew Maxwell, Xin Wei
  • OPHTHALMIC LENS HAVING MORPHED SINUSOIDAL PHASE SHIFT STRUCTURES
    Publication number: 20210063767
    Abstract: An ophthalmic lens includes an optic comprising an anterior surface, a posterior surface, and an optical axis. At least one of the anterior surface and the posterior surface has a surface profile including a base curvature and a plurality of morphed sinusoidal phase shift structures. The base curvature may correspond to a base optical power of the ophthalmic lens, and the morphed sinusoidal phase shift structures may be configured to extend depth of focus of the ophthalmic lens at intermediate or near viewing distances.
    Type: Application
    Filed: November 17, 2020
    Publication date: March 4, 2021
    Inventors: Xin Hong, William Andrew Maxwell, Xin Wei
  • Ophthalmic lens having morphed sinusoidal phase shift structures
    Patent number: 10871659
    Abstract: An ophthalmic lens includes an optic comprising an anterior surface, a posterior surface, and an optical axis. At least one of the anterior surface and the posterior surface has a surface profile including a base curvature and a plurality of morphed sinusoidal phase shift structures. The base curvature may correspond to a base optical power of the ophthalmic lens, and the morphed sinusoidal phase shift structures may be configured to extend depth of focus of the ophthalmic lens at intermediate or near viewing distances.
    Type: Grant
    Filed: July 24, 2018
    Date of Patent: December 22, 2020
    Assignee: Alcon Inc.
    Inventors: Xin Hong, William Andrew Maxwell, Xin Wei
  • OPHTHALMIC LENS HAVING EXTENDED DEPTH OF FOCUS
    Publication number: 20190021847
    Abstract: An ophthalmic lens includes an optic comprising an anterior surface, a posterior surface, and an optical axis. At least one of the anterior surface and the posterior surface has a surface profile including a base curvature and a plurality of morphed sinusoidal phase shift structures. The base curvature may correspond to a base optical power of the ophthalmic lens, and the morphed sinusoidal phase shift structures may be configured to extend depth of focus of the ophthalmic lens at intermediate or near viewing distances.
    Type: Application
    Filed: July 24, 2018
    Publication date: January 24, 2019
    Inventors: Xin Hong, William Andrew Maxwell, Xin Wei