Issued Patents All Time
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 6391103 | Color imparting compositions for ink jet printer inks and machine readable ink compositions containing same | Richard A. Bernard, Claude Zeller | 2002-05-21 |
| 6284027 | Machine readable water based red fluorescent ink compositions | Richard A. Bernard, Claude Zeller | 2001-09-04 |
| 5988807 | Fluorescent valve jet ink | Richard A. Bernard, Norman C. Hochwalt, Jerome Jackson | 1999-11-23 |