Issued Patents All Time
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5888691 | Process for producing toner | John R. Laing, Hui Chang | 1999-03-30 |
| 5374175 | Toner fine recovery system | Michael J. Bortfeldt, John R. Farkas, Jeffery Hammond, Thomas W. O'Connor, Valentin Sukhenko | 1994-12-20 |