Issued Patents 1997
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5620827 | On-press developable lithographic printing plate precursor | Chieh-Min Cheng, John M. Hardin, Rong-Chang Liang, Leonard C. Wan | 1997-04-15 |
| 5616449 | Lithographic printing plates with dispersed rubber additives | Chieh-Min Cheng, Rong-Chang Liang, William C. Schwarzel, Leonard C. Wan | 1997-04-01 |