Issued Patents All Time
Showing 1–4 of 4 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 6217794 | Fiber coating composition having an invisible marker and process for making same | Richard D. Neal, James J. Krutak | 2001-04-17 |
| 6174400 | Near infrared fluorescent security thermal transfer printing and marking ribbons | James J. Krutak, Michael John Cyr, Nelson Zamora Escano, Horst Clauberg, Tony Wayne Helton | 2001-01-16 |
| 6150494 | Polymers containing optical brightener compounds copolymerized therein and methods of making and using therefor | Richard H. S. Wang, James J. Krutak, Mahendra K. Sharma | 2000-11-21 |
| 6099930 | Methods for marking digital compact discs as a means to determine its authenticity | Michael John Cyr, Horst Clauberg, Tony Wayne Helton, Gregory Wayne Nelson, Randy B. Meade +3 more | 2000-08-08 |