Issued Patents All Time
Showing 1–5 of 5 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5240819 | Polyamide containing the hexafluoroisopropylidene group and process of using to form a positive image | Werner H. Mueller, Dinesh N. Khanna | 1993-08-31 |
| 5198325 | Photopolymerizable mixture, copying material containing same and process for producing highly heat-resistant relief structures wherein a trihalomethyl is the photoinitiator | Gerhard Buhr, Charlotte Eckes | 1993-03-30 |
| 5077378 | Polyamide containing the hexafluoroisopropylidene group | Werner H. Mueller, Dinesh N. Khanna | 1991-12-31 |
| 5021320 | Polyamide containing the hexafluoroisopropylidene group with O-quinone diazide in positive working photoresist | Werner H. Mueller, Dinesh N. Khanna | 1991-06-04 |
| 4871833 | Polyamic acids, polyimides prepared from these and process for producing high-temperature resistant layers | — | 1989-10-03 |