Issued Patents 1989
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4810601 | Top imaged resists | Kaolin N. Chiong, Ming-Fea Chow, Scott A. MacDonald, Jer-Ming Yang, Carlton G. Willson | 1989-03-07 |
| 4800152 | Negative resist compositions | Jean M. J. Frechet, Robert J. Twieg, Carlton G. Willson | 1989-01-24 |