Qichang C. Xu

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State College, PA, US

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Patents Grantslast 30 patents

Information Patent Grant
Metal-electroactive ceramic composite actuators
- Patent number 5,276,657
- Issue date Jan 4, 1994
- The Pennsylvania Research Corporation
- Robert E. Newnham
- H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information Patent Grant
Transformed stress direction acoustic transducer
- Patent number 4,999,819
- Issue date Mar 12, 1991
- The Pennsylvania Research Corporation
- Robert E. Newnham
- B06 - GENERATING OR TRANSMITTING MECHANICAL VIBRATIONS IN GENERAL