Patents by Inventor Larry W. Cherne

Larry W. Cherne 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).

  • Carbon dioxide laser resonator gas
    Patent number: 7058108
    Abstract: The present invention is directed, in part, to a carbon dioxide laser resonator gas comprising carbon dioxide, helium, and nitrogen and having a total halocarbon concentration less than about 100 parts per trillion. In one embodiment, the total halocarbon concentration is less than about 50 parts per trillion. The laser resonator gases, laser systems, and methods of the present invention provide high efficiency and high power laser light while reducing the cost of maintenance and improving the performance of a laser system by limiting the total concentration of halocarbon.
    Type: Grant
    Filed: July 28, 2005
    Date of Patent: June 6, 2006
    Assignee: Praxair Technology, Inc.
    Inventors: Larry W. Cherne, David A. Cherne
  • Carbon dioxide laser resonator gas
    Patent number: 6985507
    Abstract: The present invention is directed, in part, to a carbon dioxide laser resonator gas comprising carbon dioxide, helium, and nitrogen and having a total halocarbon concentration less than about 100 parts per trillion. In one embodiment, the total halocarbon concentration is less than about 50 parts per trillion. The laser resonator gases, laser systems, and methods of the present invention provide high efficiency and high power laser light while reducing the cost of maintenance and improving the performance of a laser system by limiting the total concentration of halocarbon.
    Type: Grant
    Filed: June 3, 2003
    Date of Patent: January 10, 2006
    Assignee: Praxair Technology, Inc.
    Inventors: Larry W. Cherne, David A. Cherne
  • Carbon dioxide laser resonator gas
    Publication number: 20040004986
    Abstract: The present invention is directed, in part, to a carbon dioxide laser resonator gas comprising carbon dioxide, helium, and nitrogen and having a total halocarbon concentration less than about 100 parts per trillion. In one embodiment, the total halocarbon concentration is less than about 50 parts per trillion. The laser resonator gases, laser systems, and methods of the present invention provide high efficiency and high power laser light while reducing the cost of maintenance and improving the performance of a laser system by limiting the total concentration of halocarbon.
    Type: Application
    Filed: June 3, 2003
    Publication date: January 8, 2004
    Inventors: Larry W. Cherne, David A. Cherne