1. Photoactivated antiviral and antitumor compositions.  Kraus, G. A.; Carpenter, S. L.; Petrich, J. W.  Patent No. 5,780,287.  Jul. 14, 1998.

2. Photoactivated antiviral and antitumor compositions.  Kraus, G. A.; Carpenter, S. L.; Petrich, J. W.  Patent No. 5,786,198.  Jul. 28, 1998.

3. Method and system for detecting fecal and ingesta contamination on the carcasses of meat animals.  Casey, T. A.; Rasmussen, M. A.; Petrich, J. W.  Patent No. 5,914,247.  Jun. 22, 1999.

4. Photoactivated Antiviral and Antitumor Compositions.  Kraus, G. A,  Petrich, J. W., Carpenter, S.  Patent No. 5,952,311.  Sept. 14, 1999.

5. Photoactivated Antiviral and Antitumor Compositions.  Kraus, G. A,  Petrich, J. W., Carpenter, S.  Patent No. 6,160,024.  Dec. 13, 2000.

6. Real-time monitoring of age pigments and factors relating to transmissible spongiform encephalopathies and apparatus.  United States Patent Application 20040248285.  Casey, Thomas A,  Rasmussen, Mark A., Gapsch, Albin H., Flick, Ricky Lee, Petrich, Jacob W.

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