Patents by Inventor Vladislav Lifschitz

Vladislav Lifschitz 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 glass with varying refraction index
    Patent number: 5958810
    Abstract: Optical glasses or lenses are described having a refractive index that varies as a function of at least one coordinate, which is made from a starting material with a constant refractive index by ion exchange. Greater index gradients than with the prior art are achieved by special compositions and ion exchange baths intended therefor. In addition, the stability of the glasses is increased.
    Type: Grant
    Filed: October 28, 1997
    Date of Patent: September 28, 1999
    Assignee: Optische Werke G. Rodenstock
    Inventors: Werner Mohr, Boris Goldenfang, Vladimir Il'Lin, Vladislav Lifschitz, Nikolai Remizov