Patents by Inventor Steffen Paulekuhn

Steffen Paulekuhn 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).

  • Method for removing lens forming material deposited on a lens forming surface
    Patent number: 11759980
    Abstract: A method of removing a lens forming material deposited on a lens forming surface (1) of a reusable glass mold for forming ophthalmic lenses, in particular contact lenses or intraocular lenses, comprises the steps of providing a plasma (2), exposing the lens forming surface (1) of the reusable glass mold to the plasma (2) for removing the lens forming material deposited on the lens forming surface (1). The plasma (2) is generated under atmospheric pressure and potential-free, or is generated under reduced pressure.
    Type: Grant
    Filed: October 29, 2020
    Date of Patent: September 19, 2023
    Assignee: Alcon Inc.
    Inventors: Stefan Kastl, Steffen Paulekuhn, Stephan Pirl, Gabriela Cocora
  • METHOD FOR REMOVING LENS FORMING MATERIAL DEPOSITED ON A LENS FORMING SURFACE
    Publication number: 20210129391
    Abstract: A method of removing a lens forming material deposited on a lens forming surface (1) of a reusable glass mold for forming ophthalmic lenses, in particular contact lenses or intraocular lenses, comprises the steps of providing a plasma (2), exposing the lens forming surface (1) of the reusable glass mold to the plasma (2) for removing the lens forming material deposited on the lens forming surface (1). The plasma (2) is generated under atmospheric pressure and potential-free, or is generated under reduced pressure.
    Type: Application
    Filed: October 29, 2020
    Publication date: May 6, 2021
    Inventors: Stefan Kastl, Steffen Paulekuhn, Stephan Pirl, Gabriela Cocora
  • Contact lens inspection method and system
    Patent number: 10591747
    Abstract: Disclosed is an inspection and system method and system for determining the orientation of a contact lens on a lens support, particularly in an automated contact lens manufacturing line.
    Type: Grant
    Filed: September 6, 2018
    Date of Patent: March 17, 2020
    Assignee: Alcon Inc.
    Inventors: Steffen Paulekuhn, Susanne Fechner, Sarah Unterkofler, Daniel Kessler, Evgeni Schumm, Matthias Schwab
  • CONTACT LENS INSPECTION METHOD AND SYSTEM
    Publication number: 20190072784
    Abstract: A method for determining the orientation of a contact lens (1) on a lens support (3) comprises the steps of: providing a contact lens (1) having a lens center (2) and a sagittal height (h), providing a lens support (3), arranging the contact lens (1) on the lens support (3), providing a camera system (40) having a depth of field (4) of less than the sagittal height (h), illuminating the contact lens (1) arranged on the lens support (3) with a light beam, focusing the camera system (40) to a set focus corresponding to the expected position of the lens center (2) of the properly oriented contact lens (1) arranged on the lens support (3) with the lens center (2) of the properly oriented contact lens (1) on the lens support (3) being within the depth of field (4) of the focused camera system (40), producing an image (10) of the contact lens (1), scanning the image (10) of the contact lens (1) in at least one image portion (S) of a predetermined size; determining the image defocus of the at least one image port
    Type: Application
    Filed: September 6, 2018
    Publication date: March 7, 2019
    Inventors: Steffen Paulekuhn, Susanne Fechner, Sarah Unterkofler, Daniel Kessler, EVGENI SCHUMM, Matthias Schwab