Issued Patents All Time
Showing 1–11 of 11 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5646218 | Novolak resin blends for photoresist applications | Thomas J. Lynch, Dana L. Durham | 1997-07-08 |
| 5374693 | Novolak resin blends for photoresist applications | Thomas J. Lynch, Dana L. Durham | 1994-12-20 |
| 5348842 | Method for producing positive photoresist image utilizing diazo ester of benzolactone ring compound and diazo sulfonyl chloride | Dinesh N. Khanna, Douglas McKenzie, Ralph R. Dammel | 1994-09-20 |
| 5248585 | Polyphosphazene binder resins for photoresists comprising as photosensitizers o-quinone diazide esters | Thomas J. Lynch, Dana L. Durham | 1993-09-28 |
| 5221592 | Diazo ester of a benzolactone ring compound and positive photoresist composition and element utilizing the diazo ester | Dinesh N. Khanna, Douglas McKenzie, Ralph R. Dammel | 1993-06-22 |
| 5162510 | Process for the preparation of photosensitive compositions containing a mixed ester o-quinone photosensitizer | Robert E. Potvin, Jonas O. St. Alban | 1992-11-10 |
| 5035976 | Photosensitive article having phenolic photosensitizers containing quinone diazide and acid halide substituents | Robert E. Potvin, Jonas O. St. Alban | 1991-07-30 |
| 4902785 | Phenolic photosensitizers containing quinone diazide and acidic halide substituents | Robert E. Potvin, Jonas O. St. Alban | 1990-02-20 |
| 4892801 | Mixed ester O-quinone diazide photosensitizers and process of preparation | Robert E. Potvin, Jonas O. St. Alban | 1990-01-09 |
| 4732836 | Novel mixed ester O-quinone photosensitizers | Robert E. Potvin, Jonas O. St. Alban | 1988-03-22 |
| 4732837 | Novel mixed ester O-quinone photosensitizers | Robert E. Potvin, Jonas O. St. Alban | 1988-03-22 |