Issued Patents 1989
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4833056 | Monocomponent toner powder having strong preference for charging positively | Chung I. Young, Nancy Quan | 1989-05-23 |
| 4808352 | Crystalline vinylidene fluoride | — | 1989-02-28 |