Patents by Inventor Fred Y. Fan

Fred Y. Fan 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).

  • Glass-forming liquid crystalline compositions and optical devices formed therefrom
    Patent number: 6730242
    Abstract: A glass-forming liquid crystal composition comprises a compound having a molecular weight in the range of about 1000 to 5000 grams per mole and having the formula (NEM)x—CYC—(CHI)y wherein CYC is a substituted cycloaliphatic core moiety containing about 24 to about 60 carbon atoms or a substituted aromatic core moiety containing about 6 to about 36 carbon atoms, NEM is a nematogenic pendant moiety, CHI is a chiral pendant moiety, x is 3 to 9, and y is 0 to 4. An optical device is formed from the liquid crystal composition.
    Type: Grant
    Filed: March 12, 2003
    Date of Patent: May 4, 2004
    Assignee: The University of Rochester
    Inventors: Shaw H. Chen, Fred Y. Fan
  • Glass-forming liquid crystalline compositions and optical devices formed therefrom
    Publication number: 20030164473
    Abstract: A glass-forming liquid crystal composition comprises a compound having a molecular weight in the range of about 1000 to 5000 grams per mole and having the formula
    Type: Application
    Filed: March 12, 2003
    Publication date: September 4, 2003
    Inventors: Shaw H. Chen, Fred Y. Fan
  • Glass-forming liquid crystalline compositions and optical devices formed therefrom
    Patent number: 6558572
    Abstract: A glass-forming liquid crystal composition comprises a compound having a molecular weight in the range of about 1000 to 5000 grams per mole and having the formula (NEM)x—CYC—(CHI)y wherein CYC is a substituted cycloaliphatic core moiety containing about 24 to about 60 carbon atoms or a substituted aromatic core moiety containing about 6 to about 36 carbon atoms, NEM is a nematogenic pendant moiety, CHI is a chiral pendant moiety, x is 3 to 9, and y is 0 to 4. An optical device is formed from the liquid crystal composition.
    Type: Grant
    Filed: December 19, 2000
    Date of Patent: May 6, 2003
    Assignee: University of Rochester
    Inventors: Shaw H. Chen, Fred Y. Fan
  • Glass-forming liquid crystalline compositions and optical devices formed therefrom
    Publication number: 20010036517
    Abstract: A glass-forming liquid crystal composition comprises a compound having a molecular weight in the range of about 1000 to 5000 grams per mole and having the formula
    Type: Application
    Filed: December 19, 2000
    Publication date: November 1, 2001
    Inventors: Shaw H. Chen, Fred Y. Fan