Issued Patents 1997
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5666617 | Lid machine having a differential air pressure assisted blotting device | John F. Knapp, Shu Chang | 1997-09-09 |
| 5634170 | Method and apparatus for sensing and cleaning developer fluid | John F. Knapp | 1997-05-27 |