Patents by Inventor Champa G. Sridhar

Champa G. Sridhar 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).

  • Ultrasound transducer with improved rigid backing
    Patent number: 5297553
    Abstract: An ultrasound transducer comprising an array of individual piezoelectric transducer elements mounted upon an improved backing comprising rigid polymeric or polymer-coated particles fused into a macroscopically rigid structure having remnant tortuous permeability to provide high acoustic attenuation and to permit fluid passage into the backing structure during fabrication.
    Type: Grant
    Filed: September 23, 1992
    Date of Patent: March 29, 1994
    Assignee: Acuson Corporation
    Inventors: John W. Sliwa, Jr., Sevig Ayter, Champa G. Sridhar, John P. Mohr, III, Samuel M. Howard, Michael H. Ikeda