Patents by Inventor Leon W. Schmidt

Leon W. Schmidt 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).

  • Hand-held display device
    Patent number: 7236146
    Abstract: A display device comprising a first body and a second body, the second body connected to the first body at a rotary connection. A display element, which may include one or more light-emitting diodes, is disposed on the second body. A controller is electrically connected to the first display element so as to vary the state of the display element in response to relative movement between the first body and second body.
    Type: Grant
    Filed: November 19, 2003
    Date of Patent: June 26, 2007
    Assignee: Axxion Group Corporation
    Inventors: Jonathan W. Smedley, Po W. Hu, Leon W. Schmidt
  • Hand-held display device
    Publication number: 20040155845
    Abstract: A display device comprising a first body and a second body, the second body connected to the first body at a rotary connection. A display element, which may include one or more light-emitting diodes, is disposed on the second body. A controller is electrically connected to the first display element so as to vary the state of the display element in response to relative movement between the first body and second body.
    Type: Application
    Filed: November 19, 2003
    Publication date: August 12, 2004
    Applicant: AXXION GROUP CORPORATION
    Inventors: Jonathan W. Smedley, Po W. Hu, Leon W. Schmidt
  • Analysis system
    Patent number: 4550084
    Abstract: A chemical analysis system for analyzing a plurality of independent specimens that have time varying characteristics includes a circumferential array of analysis regions that hold the specimens. The analytical regions are sequentially and repetitively sensed and resulting analysis signals corresponding to monitored specimen characteristics are stored in corresponding memory locations. A signal transmission channel connected between the sensor and the memory includes a signal storage capacitor and variable slew rate circuitry.
    Type: Grant
    Filed: November 18, 1983
    Date of Patent: October 29, 1985
    Assignee: Allied Corporation
    Inventors: Larry A. Nelson, Leon W. Schmidt
  • Analysis system
    Patent number: 4446106
    Abstract: A chemical analysis system for analyzing a plurality of independent specimens that have time varying characteristics includes a circumferential array of analysis regions that hold the specimens. The analytical regions are sequentially and repetitively sensed and resulting analysis signals corresponding to monitored specimen characteristics are stored in corresponding memory locations. A signal transmission channel connected between the sensor and the memory includes a signal storage capacitor and variable slew rate circuitry.
    Type: Grant
    Filed: January 15, 1982
    Date of Patent: May 1, 1984
    Assignee: Instrumentation Laboratory Inc.
    Inventors: Larry A. Nelson, Leon W. Schmidt
  • Hand-held display device
    Patent number: D508540
    Type: Grant
    Filed: January 21, 2004
    Date of Patent: August 16, 2005
    Assignee: Axxion Group Corporation
    Inventors: Jonathan W. Smedley, Po W. Hu, Leon W. Schmidt