Issued Patents All Time
Showing 26–50 of 51 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5260162 | Photosensitizer compositions containing diazo fluorinated esters of hexafluoro-bis-phenols or bis-hexafluoroethers | Robert E. Potvin | 1993-11-09 |
| 5240819 | Polyamide containing the hexafluoroisopropylidene group and process of using to form a positive image | Werner H. Mueller, Bernd Hupfer | 1993-08-31 |
| 5221592 | Diazo ester of a benzolactone ring compound and positive photoresist composition and element utilizing the diazo ester | Douglas McKenzie, Chester J. Sobodacha, Ralph R. Dammel | 1993-06-22 |
| 5130481 | Bis-N,N' nitro or amino benzoyl amino phenols | William Lee | 1992-07-14 |
| 5106720 | Base developable negative acting photoresists | Werner H. Mueller | 1992-04-21 |
| 5101005 | Crosslinkable polyimides from bis (aminophenoxy) benzonitriles | Rohitkumar H. Vora, Wolfgang Appel | 1992-03-31 |
| 5077378 | Polyamide containing the hexafluoroisopropylidene group | Werner H. Mueller, Bernd Hupfer | 1991-12-31 |
| 5071948 | Polyamide-polyimide and polybenzoxazole-polyimide polymer | — | 1991-12-10 |
| 5055550 | Polymers prepared from 4,4'-bis(2-[3,4(dicarboxyphenyl)hexafluoroisopropyl] diphenyl ether dianhydride | Werner H. Mueller, Rohitkumar H. Vora, Ruediger J. Erckel | 1991-10-08 |
| 5037720 | Hydroxylated aromatic polyamide polymer containing bound naphthoquinone diazide photosensitizer, method of making and use | — | 1991-08-06 |
| 5037949 | Polymers prepared from 4,4'-bis[2-(amino (halo) phenoxyphenyl) hexafluoroisopropyl]diphenyl ether | Werner H. Mueller, Rohitkumar H. Vora, Ruediger J. Erckel | 1991-08-06 |
| 5021320 | Polyamide containing the hexafluoroisopropylidene group with O-quinone diazide in positive working photoresist | Werner H. Mueller, Bernd Hupfer | 1991-06-04 |
| 5011753 | Photoresist compositions containing polyamides polybenzoxa from bis((aminohydroxyphenyl)hexafluoroisopropyl)diphenyl ethers | Werner H. Mueller | 1991-04-30 |
| 4980447 | Polyamide-polyimide and polybenzoxazole-polyimide polymer | — | 1990-12-25 |
| 4978734 | Polyamide-polyamide and polybenzoxazole-polyamide polymer | — | 1990-12-18 |
| 4978733 | Polyamide-polyamide-polyimide and polybenzoxazole-polyamide-polyimide polymer having at least one fluorine-containing linking group | — | 1990-12-18 |
| 4978738 | High molecular weight, thermally soluble polyimides | Werner H. Mueller, Rohitkumar H. Vora | 1990-12-18 |
| 4939215 | Heat resistant polybenzoxazole from bis-((aminohydroxyphenyl)hexafluoroisopropyl)diphenyl ether | Werner H. Mueller | 1990-07-03 |
| 4931540 | Polymers prepared from 4,4'-bis[2-(3,4-(dicarboxyphenyl)hexafluoroisopropyl] diphenyl ether dianhydride | Werner H. Mueller, Rohitkumar H. Vora, Ruediger J. Erckel | 1990-06-05 |
| 4927736 | Hydroxy polyimides and high temperature positive photoresists therefrom | Werner H. Mueller | 1990-05-22 |
| 4925915 | Polymers prepared from 4,4'-bis(2-(amino(halo) phenoxyphenyl) hexafluoroisopropyl) diphenyl ether | Werner H. Mueller, Rohitkumar H. Vora, Ruediger J. Erckel | 1990-05-15 |
| 4877653 | Process for insolublizing solvent soluble polyimide compositions | Rohitkumar H. Vora, Suzanne Fontaine | 1989-10-31 |
| 4866155 | Polester of bis(2-(hydroxyphenyl)-hexafluoroisopropyl)diphenyl ether | Werner H. Mueller | 1989-09-12 |
| 4845183 | Heat resistant polyamide and polybenzoxazole from bis-((amino-hydroxyphenyl)hexafluoroisopropyl)diphenyl ethers | Werner H. Mueller | 1989-07-04 |
| 4822868 | Polycarbonamide of bis(2-(4-carboxyphenyl)-hexafluoroisopropyl)diphenyl ether | Werner H. Mueller | 1989-04-18 |