Patents by Inventor Thomas R. Au Coin

Thomas R. Au Coin 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).

  • Method of making a multidimensional quantum-well array
    Patent number: 4883769
    Abstract: Multidimensional quantum-well arrays are made by electron-beam lithographic atterning, followed by solid-state diffusion.
    Type: Grant
    Filed: August 18, 1988
    Date of Patent: November 28, 1989
    Assignee: The United States of America as represented by the Secretary of the Army
    Inventors: Thomas R. Au Coin, Walter D. Braddock IV, Gerald J. Iafrate
  • Method of maintaining the strength of optical fibers
    Patent number: 4118211
    Abstract: The mechanical strength of an optical fiber is maintained by coating the er with an inorganic ceramic material that is impervious to both moisture and chemically corrosive environments. The ceramic coating is applied immediately after the fiber is drawn.
    Type: Grant
    Filed: June 22, 1977
    Date of Patent: October 3, 1978
    Assignee: The United States of America as represented by the Secretary of the Army
    Inventors: Thomas R. Au Coin, Sam Di Vita, Melvin J. Wade
  • Method of growing single crystals of neodymium pentaphosphate
    Patent number: 4043860
    Abstract: Single crystals of neodymium pentaphosphate greater than one centimeter in size and of high purity and quality are grown from polyphosphoric acid solutions using the combination of a dilute solution, seeding, growth temperatures of 500.degree. to 650.degree. C, and a double crucible configuration.
    Type: Grant
    Filed: January 24, 1977
    Date of Patent: August 23, 1977
    Assignee: The United States of America as represented by the Secretary of the Army
    Inventors: Thomas R. Au Coin, Abraham Schwartz, John G. Gualtieri, Melvin J. Wade