Issued Patents 1997
Showing 1–5 of 5 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5693749 | Fractionation of phenol formaldehyde condensate and photoresist compositions produced therefrom | M. Dalil Rahman, Dinesh N. Khanna, Sunit S. Dixit | 1997-12-02 |
| 5688893 | Method of using a Lewis base to control molecular weight of novolak resins | M. Dalil Rahman, Dana L. Durham, Ralph R. Dammel | 1997-11-18 |
| 5665517 | Acidic ion exchange resin as a catalyst to synthesize a novolak resin and photoresist composition therefrom | M. Dalil Rahman, Elaine G. Kokinda, Dana L. Durham | 1997-09-09 |
| 5656413 | Low metal ion containing 4,4'-[1-[4-[1-(4-Hydroxyphenyl)-1-methylethyl]phenyl]ethylidene]bisphe nol and photoresist compositions therefrom | M. Dalil Rahman | 1997-08-12 |
| 5614349 | Using a Lewis base to control molecular weight of novolak resins | M. Dalil Rahman, Dana L. Durham, Ralph R. Dammel | 1997-03-25 |