Issued Patents All Time
Showing 1–16 of 16 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4636449 | Electrostatic printing process | — | 1987-01-13 |
| 4453492 | Magnetic developing unit with improved toner decorator for magnetic printing | — | 1984-06-12 |
| 4427412 | Magnetic printing of disperse-dyeable textile material | — | 1984-01-24 |
| 4421518 | Printing process | — | 1983-12-20 |
| 4421515 | Printing process | — | 1983-12-20 |
| 4421517 | Printing process | — | 1983-12-20 |
| 4420307 | Printing process | — | 1983-12-13 |
| 4419102 | Process for level dyeing of textiles by heat transfer | — | 1983-12-06 |
| 4406662 | Heat transfer printing on a filled polymethyl methacrylate article | Joseph F. Beran | 1983-09-27 |
| 4336546 | Magnetic printing apparatus | Donald W. Edwards, Arend Van Roggen | 1982-06-22 |
| 4329694 | AC Corona to remove background from the transfer member of a thermomagnetic copier | Donald W. Edwards, Arend Van Roggen | 1982-05-11 |
| 4323904 | Magnetic printing process and apparatus | Donald W. Edwards | 1982-04-06 |
| 4233382 | Electrostatic transfer of magnetically held toner images | Donald W. Edwards | 1980-11-11 |
| 4216282 | AC corona to remove background from the imaging member of a magnetic copier | Donald W. Edwards, Arend Van Roggen | 1980-08-05 |
| 4195303 | Magnetic printing process and apparatus | Donald W. Edwards | 1980-03-25 |
| 4191961 | Magnetic printing process and apparatus | Donald W. Edwards, Arend Van Roggen | 1980-03-04 |