Patents by Inventor Donald R. Patterson

Donald R. Patterson 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).

  • Time domain reflectometry measurement instrument
    Patent number: 6690320
    Abstract: A time domain reflectometry measuring instrument uses a microprocessor that provides added functionality and capabilities. The circuit electronics and probe are tested and calibrated at the factory. Installation and commissioning by the user is simple. The user installs the probe. The transmitter is attached to the probe. The user connects a standard shielded twisted pair to the electronics. Power is applied and the device immediately displays levels. A few simple parameters may need to be entered such as output characteristics and the process material dielectric constant.
    Type: Grant
    Filed: June 11, 2001
    Date of Patent: February 10, 2004
    Assignee: Magnetrol International Incorporated
    Inventors: John S. Benway, Donald R. Patterson, James M. Berry
  • Time domain reflectometry measurement instrument
    Publication number: 20010050629
    Abstract: A time domain reflectometry measuring instrument uses a microprocessor that provides added functionality and capabilities. The circuit electronics and probe are tested and calibrated at the factory. Installation and commissioning by the user is simple. The user installs the probe. The transmitter is attached to the probe. The user connects a standard shielded twisted pair to the electronics. Power is applied and the device immediately displays levels. A few simple parameters may need to be entered such as output characteristics and the process material dielectric constant.
    Type: Application
    Filed: June 11, 2001
    Publication date: December 13, 2001
    Inventors: John S. Benway, Donald R. Patterson, James M. Berry
  • Medicine cabinet
    Patent number: D260953
    Type: Grant
    Filed: April 4, 1980
    Date of Patent: September 29, 1981
    Inventor: Donald R. Patterson
  • Pediatric examination table
    Patent number: D261549
    Type: Grant
    Filed: April 12, 1979
    Date of Patent: October 27, 1981
    Inventor: Donald R. Patterson
  • Examining table
    Patent number: D265241
    Type: Grant
    Filed: April 4, 1980
    Date of Patent: June 29, 1982
    Inventor: Donald R. Patterson
  • Examining table
    Patent number: D265242
    Type: Grant
    Filed: April 4, 1980
    Date of Patent: June 29, 1982
    Inventor: Donald R. Patterson
  • VCR and DVD player combination
    Patent number: D476970
    Type: Grant
    Filed: July 30, 2002
    Date of Patent: July 8, 2003
    Inventor: Donald R. Patterson