Patents by Inventor David A. Lehr

David A. Lehr 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).

  • Encoded short message service text messaging systems and methods
    Patent number: 10290055
    Abstract: According to some embodiments, systems, methods, apparatus, computer program code and means are provided to encode data in a text message and to send the text message to a mobile device associated with a user.
    Type: Grant
    Filed: April 21, 2006
    Date of Patent: May 14, 2019
    Assignee: Refinitiv US Organization LLC
    Inventors: Mans Olof-Ors, David Lehr
  • Encoded short message service text messaging systems and methods
    Publication number: 20070250432
    Abstract: According to some embodiments, systems, methods, apparatus, computer program code and means are provided to encode data in a text message and to send the text message to a mobile device associated with a user.
    Type: Application
    Filed: April 21, 2006
    Publication date: October 25, 2007
    Inventors: Mans Olof-Ors, David Lehr
  • Apparatus for lengthwise graphitization (LWG) of carbon electrode bodies
    Patent number: 5631919
    Abstract: A furnace apparatus and method for the lengthwise graphitization (LWG) of carbon bodies are provided which utilize U-shaped metal furnace sections mounted on stationary rib supports to contain carbon electrode bodies and surrounding thermally insulating pack material. Vertical flues are provided between parallel rows of U-shaped metal furnace sections to accelerate cooling of graphitized electrode bodies and in a further embodiment water droplets are additionally sprayed on the metal furnace sections.
    Type: Grant
    Filed: November 21, 1995
    Date of Patent: May 20, 1997
    Assignee: UCAR Carbon Technology Corporation
    Inventors: Allan W. Intermill, Francis E. Wise, David A. Lehr
  • Modular spray cooled side-wall for electric arc furnaces
    Patent number: 5561685
    Abstract: Spray cooled side-wall assembly for an electric arc furnace which includes individual spray cooled segments joined together to form a furnace side-wall. One or more of the segments can be arch-shaped and surround a spray cooled sub-assembly to address conditions of high thermal stress.
    Type: Grant
    Filed: April 27, 1995
    Date of Patent: October 1, 1996
    Assignee: UCAR Carbon Technology Corporation
    Inventors: David A. Lehr, Gordon R. Roberts, Frank H. Miner, William H. Burwell, Mark T. Arthur
  • Spray cooled hood system for handling hot gases from a metallurgical vessel utilizing pneumatic processing of molten metal
    Patent number: 5330161
    Abstract: Hood assembly for pneumatic process metallurgical vessel, such as BOF, which includes removeable spray cooled sub-assemblies at predetermined locations in the hood assembly.
    Type: Grant
    Filed: July 8, 1993
    Date of Patent: July 19, 1994
    Assignee: Ucar Carbon Technology Corporation
    Inventors: David A. Lehr, Gordon R. Roberts, Mark T. Arthur