Patents by Inventor Terry A. Keller, II

Terry A. Keller, II 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 compounds
    Patent number: 9405041
    Abstract: A photochromic compound is provided, which may be a pyran, an oxazine, or a fulgide. The photochromic compound has at least one substituent Q attached thereto, each Q independently being —N3, —CN, —COOR?, —CCR?, —C(R?)C(R?)R?, —OCOR?, —OCOOR?, —SR?, —OSO2R??, and/or —CON(R?)R?, wherein each R? is hydrogen, an unsubstituted or substituted alkyl group having from 1 to 18 carbon atoms; an unsubstituted or substituted aryl group, an unsubstituted or substituted alkene or alkyne group having from 2 to 18 carbon atoms, wherein the substituents are halo or hydroxyl and R?? is —CF3 or a perfluorinated alkyl group having from 2 to 18 carbon atoms. The number, locations and nature of the constituents Q are dependent upon the structure of the photochromic compound.
    Type: Grant
    Filed: February 7, 2014
    Date of Patent: August 2, 2016
    Assignee: Transitions Optical, Inc.
    Inventors: Meng He, Darrin R. Dabideen, Anil Kumar, Terry A. Keller, II
  • PHOTOCHROMIC COMPOUNDS
    Publication number: 20140154514
    Abstract: A photochromic compound is provided, which may be a pyran, an oxazine, or a fulgide. The photochromic compound has at least one substituent Q attached thereto, each Q independently being —N3, —CN, —COOR?, —CCR?, —C(R?)C(R?)R?, —OCOR?, —OCOOR?, —SR?, —OSO2R??, and/or —CON(R?)R?, wherein each R? is hydrogen, an unsubstituted or substituted alkyl group having from 1 to 18 carbon atoms; an unsubstituted or substituted aryl group, an unsubstituted or substituted alkene or alkyne group having from 2 to 18 carbon atoms, wherein the substituents are halo or hydroxyl and R?? is —CF3 or a perfluorinated alkyl group having from 2 to 18 carbon atoms. The number, locations and nature of the constituents Q are dependent upon the structure of the photochromic compound.
    Type: Application
    Filed: February 7, 2014
    Publication date: June 5, 2014
    Applicant: TRANSITIONS OPTICAL, INC.
    Inventors: Meng He, Darrin R. Dabideen, Anil Kumar, Terry A. Keller, II