Patents by Inventor George F. Winterson

George F. Winterson 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).

  • Thioglycerol derivatives and their use in polysulfide compositions for optical material
    Patent number: 6066758
    Abstract: Novel thioglycerol derivatives, processes for their manufacture, and optical materials made from such compounds. The thioglycerol derivatives have high concentrations of sulfur relative to compounds conventionally used for optical materials, and thus exhibit high refractive indices without sacrificing processability.
    Type: Grant
    Filed: September 2, 1999
    Date of Patent: May 23, 2000
    Assignee: Hampshire Chemical Corp.
    Inventors: Richard P. Woodbury, John B. Stallman, George F. Winterson, Kenneth L. Avery
  • Thioglycerol derivatives and their use in polysulfide compositions for optical material
    Patent number: 5973192
    Abstract: Novel thioglycerol derivatives, processes for their manufacture, and optical materials made from such compounds. The thioglycerol derivatives have high concentrations of sulfur relative to compounds conventionally used for optical materials, and thus exhibit high refractive indices without sacrificing processability.
    Type: Grant
    Filed: November 26, 1997
    Date of Patent: October 26, 1999
    Assignee: Hampshire Chemical Corp.
    Inventors: Richard P. Woodbury, John B. Stallman, George F. Winterson, Kenneth L. Avery