Issued Patents 1989
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4835084 | Electrostatographic toner and method of producing the same | Zona R. Pierce | 1989-05-30 |
| 4833060 | Polymeric powders having a predetermined and controlled size and size distribution | Zona R. Pierce, Chandra Sreekumar | 1989-05-23 |