Patents:

1. C. Zhang, H. R. Fetterman, W. Steier, J. Michael. “Sterically stabilized second-order nonlinear optical chromophores with improved stability and devices incorporating the same,” US Patent, 6,616,865 B1, Sept. 9, 2003.

2. C. Zhang, H. R. Fetterman, W. Steier, J. Michael. “Polymers containing polyene-bridged second-order nonlinear optical chromophores and devices incorporating the same.”   U.S. Patent, 6,652,779  November 25, 2003.

3. Dalton, Larry R.; Zhang, C.; Wang, C.; Fetterman, H. R.; Wang, F.; Steier, W.; Harper, A. W.; Ren, A. S.; Michael, J..  “Sterically stabilized second-order nonlinear optical chromophores and devices incorporating the same.”    U.S. Patent  6,361,717 B1, March 26, 2002.

4. C. Zhang, H. R. Fetterman, W. Steier, J. Michael.  “Sterically stabilized polyene-bridged second-order nonlinear optical chromophores and devices incorporating the same.”    U.S. Patent 6,348,992, February 19, 2002.

5. C. Wang, C. Zhang, H. R. Fetterman, W. Steier, J. Michael. “Second-order nonlinear optical chromophores containing dioxine and/or bithiophene as conjugate bridge and devices incorporating the same.” U.S. Pat. Appl. Publ.  (2002),     16 pp., Cont.-in-part of U. S. Ser. No. 488,422.