Patents by Inventor Christy P. Thomas

Christy P. Thomas 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).

  • Variable focus lens system employing elastomeric lens
    Patent number: 4444471
    Abstract: A variable focus lens system comprising an elastomeric, integrally molded, optical member and mounting arrangements therefor by which the axial position and the shape of a central lens part of the optical member can be changed in correspondence with one another to provide the lens system with focusing action over a predetermined range.
    Type: Grant
    Filed: March 12, 1982
    Date of Patent: April 24, 1984
    Assignee: Polaroid Corporation
    Inventors: John W. Ford, Jr., Howard G. Rogers, Christy P. Thomas