Issued Patents All Time
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 6329128 | Stable antihalation materials for photographic and photothermographic elements | Randall H. Helland, William D. Ramsden | 2001-12-11 |
| 6171707 | Polymeric film base having a coating layer of organic solvent based polymer with a fluorinated antistatic agent | Steven R. Austin | 2001-01-09 |
| 5985537 | Photothermographic elements incorporating antihalation dyes | James B. Philip, Jr. | 1999-11-16 |
| 5380635 | Dihydroperimidine squarylium dyes as antihalation and acutance materials for photographic and photothermographic articles | Lori S. Harring, Randall H. Helland, William D. Ramsden, Tran Van Thien | 1995-01-10 |