Y. Xu and C.-I Chang, Method and Apparatus for Automatic Pattern Recognition, U.S. Patent and Trademark Office, US Patent, number 5,784,485, July 21, 1998.
P.C. Chung, S.K. Lee, C.-I Chang, C.W. Yang and C.S. Lo, 3-D Localization of Clustered Microcalcifications Using Cranio-Caudal and Medio-Lateral Oblique Views, Patent and Trademark Office of Taiwan, January 12, 2000, Patent Number 121,953.
P. C. Chung, C.S. Lo, C.-I Chang, S.K. Lee and C.-W. Yang, 3-D Localization of Clustered Microcalcifications Using Cranio-Caudal and Medio-Lateral Oblique Views, US Patent, number 6,614,921 B1, September 2, 2003.
C.-I Chang and J. Wang, Real-Time Implementation of Field Programmable Gate Arrays (FPGA) Design in Hyperspectral Imagery, US Patent, number 7,366,326, April 29, 2008.
N. Safdar, B. Ramakrishna, C.-I Chang, W. Liu, K. Siddiqui, E. Siegel and W. Kim, Detecting Meniscal Tears in Non-invasive Scans, US Patent number 8,180,126 B2, May 15, 2012.
C.-I Chang, Maximum Simplex Volume-Based Endmember Extraction Algorithms, US Patent number 8,417,748 B2, April 9, 2013.