Patents by Inventor Louis Spitzer

Louis Spitzer 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).

  • Using condensed chemicals to precondition lithium niobate and lithium tantalate crystals
    Patent number: 7153487
    Abstract: Methods and apparatus for preconditioning a lithium niobate or lithium tantalate crystal. At least a portion of a surface of the crystal is covered with a condensed material including one or more active chemicals. The crystal is heated in a non-oxidizing environment above an activating temperature at which the active chemicals contribute to reducing the crystal beneath the covered surface portion. The crystal is cooled from above the activating temperature to below a quenching temperature at which the active chemicals become essentially inactive for reducing the crystal.
    Type: Grant
    Filed: May 25, 2004
    Date of Patent: December 26, 2006
    Assignee: Crystal Technology, Inc.
    Inventors: Dieter Hans Jundt, Maria Claudia Custodio Kajiyama, Jason Louis Spitzer
  • Apparatus and method for transmitting information from signage to portable computing device, and system utilizing same
    Publication number: 20010054066
    Abstract: A method, apparatus, and computer program for delivering data to a computing device by transmitting, from a local server, data to the computing device, where the data is associated with a display located in the vicinity of transmission.
    Type: Application
    Filed: December 1, 2000
    Publication date: December 20, 2001
    Inventor: Louis Spitzer