Issued Patents 1997
Showing 1–1 of 1 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5612164 | Positive photoresist composition comprising a mixed ester of trishydroxyphenyl ethane and a mixed ester of trihydroxybenzophenone | Anthony Canize, Ping-Hung Lu, Walter Spiess | 1997-03-18 |