Patents by Inventor Michael Witzany

Michael Witzany 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).

  • Lens blank having a temporary grip coating for a method for manufacturing spectacle lenses according to a prescription
    Patent number: 9529123
    Abstract: A lens blank is proposed, having a first face, an opposite, second face, and an edge inbetween, the first face possessing a final curvature and being coated, in this order, with an antireflection coating, a top coating, and a temporary grip coating. The antireflection coating has a stack of alternating antireflection layers with an outermost layer, whereas the top coating is selected from a group including hydrophobic, oleophobic and dirt repelling coatings. The temporary grip coating and the outermost layer of the antireflection coating are made from one and the same coating material. In this way the temporary grip coating effectively serves to provide sufficient adhesion to the blocking material on the block piece in the processing steps, and can easily be removed from the processed lens upon deblocking without degrading the repelling properties of the top coating.
    Type: Grant
    Filed: June 23, 2015
    Date of Patent: December 27, 2016
    Assignee: Satisloh AG
    Inventors: Frank Breme, Michael Witzany, Marc Peter, Guiseppe Viscomi, Arturo Colautti
  • LENS BLANK HAVING A TEMPORARY GRIP COATING FOR A METHOD FOR MANUFACTURING SPECTACLE LENSES ACCORDING TO A PRESCRIPTION
    Publication number: 20160003986
    Abstract: A lens blank is proposed, having a first face, an opposite, second face, and an edge inbetween, the first face possessing a final curvature and being coated, in this order, with an antireflection coating, a top coating, and a temporary grip coating. The antireflection coating has a stack of alternating antireflection layers with an outermost layer, whereas the top coating is selected from a group including hydrophobic, oleophobic and dirt repelling coatings. The temporary grip coating and the outermost layer of the antireflection coating are made from one and the same coating material. In this way the temporary grip coating effectively serves to provide sufficient adhesion to the blocking material on the block piece in the processing steps, and can easily be removed from the processed lens upon deblocking without degrading the repelling properties of the top coating.
    Type: Application
    Filed: June 23, 2015
    Publication date: January 7, 2016
    Inventors: Frank Breme, Michael Witzany, Marc Peter, Guiseppe Viscomi, Arturo Colautti