Patents by Inventor Anh H. Le

Anh H. Le 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).

  • Electromagnetic window
    Patent number: 5573986
    Abstract: A ceramic electromagnetic window made of Si.sub.3 N.sub.4 particles which are bonded together by a metal phosphate binder that is an AlPO.sub.4 binder, a ZrP.sub.2 O.sub.7 binder, or mixtures thereof, wherein the Si.sub.3 N.sub.4 particles comprise from 55 to 85 volume percent of the ceramic material of the electromagnetic window with the metal phosphate binder comprising the remainder. By substituting Si.sub.3 N.sub.4 whiskers for some of the Si.sub.3 N.sub.4 particles a discontinuous fiber composite ceramic electromagnetic window is produced. The electromagnetic window may be a simple shape such as a flat or slightly curved sheet or a more complex shape such as a conical or spherical radome.
    Type: Grant
    Filed: March 13, 1996
    Date of Patent: November 12, 1996
    Assignee: The United States of America as represented by the Secretary of the Navy
    Inventors: Inna G. Talmy, Curtis A. Martin, Deborah A. Haught, Anh H. Le
  • Stibine filter and antimonial lead acid batteries
    Patent number: H816
    Abstract: Stibine is removed from gases generated in antimonial lead-acid batteries by using a filter having carbon powder (especially activated charcoal) as the active agent.
    Type: Grant
    Filed: June 3, 1986
    Date of Patent: September 4, 1990
    Assignee: The United States of America as represented by the Secretary of the Navy
    Inventors: James H. Carder, Anh H. Le, Chester M. Dacres