Issued Patents All Time
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 8114189 | Method for treating iron in a silver recovery process | Christa Hockensmith, Deidre Hirschfeld | 2012-02-14 |
| 7571995 | Ink cartridge refill system for inkjet printers and method of refilling ink cartridges using the same | Kwang-Choon Chung, In-Ha Kim, Hyung-Ho Gil, Jeong-Guck Lee, Young Choul Shin | 2009-08-11 |
| 7207733 | Photographic developer effluent transfer station and drain wash | — | 2007-04-24 |
| 6096209 | Three media silver recovery apparatus | Robert O'Brien | 2000-08-01 |
| 4804452 | Electrolytic processor | — | 1989-02-14 |