Issued Patents All Time
Showing 51–51 of 51 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4994346 | Negative photoresist based on polyphenols and selected epoxy or vinyl ether compounds | Kurt Meier, Martin Roth, Adrian Schulthess | 1991-02-19 |
HW
Heinz Wolleb
Ciba Specialty Chemicals: 17 patents #46 of 1,233Top 4%
Udc Ireland Limited: 15 patents #17 of 148Top 15%
Ciba-Geigy: 10 patents #289 of 2,867Top 15%
Idemitsu Kosan Co.: 4 patents #327 of 1,237Top 30%
Overall (All Time): #52,492 of 4,157,543Top 2%
51
Patents All Time