Issued Patents All Time
Showing 1–8 of 8 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5399456 | Image reversal negative working photoresist containing O-quinone diazide and cross-linking compound | Mark A. Spak, Dana L. Durham, Sangya Jain | 1995-03-21 |
| 5256522 | Image reversal negative working O-naphthoquinone diazide and cross-linking compound containing photoresist process with thermal curing | Mark A. Spak, Dana L. Durham, Sangya Jain | 1993-10-26 |
| 5217840 | Image reversal negative working o-quinone diazide and cross-linking compound containing photoresist process with thermal curing treatment and element produced therefrom | Mark A. Spak, Dana L. Durham, Sangya Jain | 1993-06-08 |
| 5019488 | Method of producing an image reversal negative photoresist having a photo-labile blocked imide | Sangya Jain, Dana L. Durham, Mark A. Spak, Douglas A. Usifer, Michael J. McFarland | 1991-05-28 |
| 4931381 | Image reversal negative working O-quinone diazide and cross-linking compound containing photoresist process with thermal curing treatment | Mark A. Spak, Dana L. Durham, Sangya Jain | 1990-06-05 |
| 4929536 | Image reversal negative working O-napthoquinone diazide and cross-linking compound containing photoresist process with thermal curing | Mark A. Spak, Dana L. Durham, Sangya Jain | 1990-05-29 |
| 4596763 | Positive photoresist processing with mid U-V range exposure | John DiCarlo, Jonas O. St. Alban, Bruce M. Stevens | 1986-06-24 |
| 4588670 | Light-sensitive trisester of O-quinone diazide containing composition for the preparation of a positive-acting photoresist | Michael G. Kelly, Dana L. Durham, Sangya Jain, Lawrence N. Crane | 1986-05-13 |