Patents by Inventor Bohdan Grzegorz Gieslinski

Bohdan Grzegorz Gieslinski 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).

  • Photochromic article and method of preparation
    Patent number: 6811830
    Abstract: A process for manufacture of a photochromic polymeric article comprising: providing a fluid polymerisable composition; subjecting the fluid polymerisable composition to a first curing step to provide a solid article of intermediate hardness; contacting the solid article of intermediate hardness with a photochromic substance; and subjecting the solid article of intermediate hardness to a further curing step to increase the hardness and provide a polymeric article imbibed with the photochromic substance.
    Type: Grant
    Filed: September 20, 2002
    Date of Patent: November 2, 2004
    Assignee: Sola International Holdings, Ltd.
    Inventors: Huan Kiak Toh, David Andrew Lewis, Raymond K. Bubner, Bohdan Grzegorz Gieslinski, Fang Chen
  • Photochromic article and method of preparation
    Publication number: 20030043447
    Abstract: A process for manufacture of a photochromic polymeric article comprising: providing a fluid polymerisable composition; subjecting the fluid polymerisable composition to a first curing step to provide a solid article of intermediate hardness; contacting the solid article of intermediate hardness with a photochromic substance; and subjecting the solid article of intermediate hardness to a further curing step to increase the hardness and provide a polymeric article imbibed with the photochromic substance
    Type: Application
    Filed: September 20, 2002
    Publication date: March 6, 2003
    Inventors: Huan Kiak Toh, David Andrew Lewis, Raymond K. Bubner, Bohdan Grzegorz Gieslinski, Fang Chen