Issued Patents All Time
Showing 1–4 of 4 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4981650 | Method for treatment of dioxin-contaminated media | Terry L. Brown, Orest Hrycyk | 1991-01-01 |
| 4293627 | Process of developing magnetic images and dry magnetic toner compositions | Donald S. Sypula | 1981-10-06 |
| 4282296 | High speed magnetographic imaging process | Donald S. Sypula | 1981-08-04 |
| 4272600 | Magnetic toners containing cubical magnetite | Donald S. Sypula | 1981-06-09 |