Patents by Inventor Srinivasarao A. Shivashankar

Srinivasarao A. Shivashankar 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).

  • Utilization of diodes as wide range responsive thermometers
    Patent number: 4215577
    Abstract: A device is disclosed, and a method for construction, in which gallium arsenide phosphide diode chips are employed to produce an inexpensive thermometer that has a broad range, accurate, temperature sensitivity. The thermometer does not require recalibration to maintain accuracy and is rugged in construction. The chip described is a type commonly found in light-emitting diodes.
    Type: Grant
    Filed: August 28, 1978
    Date of Patent: August 5, 1980
    Assignee: Purdue Research Foundation
    Inventors: Bruce F. Griffing, Srinivasarao A. Shivashankar