Issued Patents All Time
Showing 1–7 of 7 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5162510 | Process for the preparation of photosensitive compositions containing a mixed ester o-quinone photosensitizer | Robert E. Potvin, Chester J. Sobodacha | 1992-11-10 |
| 5035976 | Photosensitive article having phenolic photosensitizers containing quinone diazide and acid halide substituents | Robert E. Potvin, Chester J. Sobodacha | 1991-07-30 |
| 4902785 | Phenolic photosensitizers containing quinone diazide and acidic halide substituents | Robert E. Potvin, Chester J. Sobodacha | 1990-02-20 |
| 4892801 | Mixed ester O-quinone diazide photosensitizers and process of preparation | Robert E. Potvin, Chester J. Sobodacha | 1990-01-09 |
| 4732836 | Novel mixed ester O-quinone photosensitizers | Robert E. Potvin, Chester J. Sobodacha | 1988-03-22 |
| 4732837 | Novel mixed ester O-quinone photosensitizers | Robert E. Potvin, Chester J. Sobodacha | 1988-03-22 |
| 4596763 | Positive photoresist processing with mid U-V range exposure | John DiCarlo, Donald Mammato, Bruce M. Stevens | 1986-06-24 |