Issued Patents All Time
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 6399281 | Composite relief image printing plates | Joseph D. Crowell, Edward Murphy, David A. Recchia | 2002-06-04 |
| 6312871 | Composite relief image printing plates | Joseph D. Crowell, Edward Murphy, David A. Recchia | 2001-11-06 |
| 5846691 | Composite relief image printing plates and methods for preparing same | Joseph D. Crowell | 1998-12-08 |
| 4927723 | Relief printing plate manufacture | — | 1990-05-22 |