Issued Patents All Time
Showing 25 most recent of 33 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5413852 | SIXEF.TM.-durene polyimide hollow fibers | Tai-Shung Chung, Edward R. Kafchinski | 1995-05-09 |
| 5137985 | Miscible blends of polybenzimidazoles and polyamide-imides having fluorine-containing linking groups and process for preparation of the blends | Paul N. Chen, Sr., Morton Glick, Michael Jaffe | 1992-08-11 |
| 5120825 | Polymers containing both imidazole and imidazolone structural units | Paul N. Chen, Sr. | 1992-06-09 |
| 5120826 | Polyamide-imide polymers having fluorine-containing linking groups | Paul N. Chen, Sr. | 1992-06-09 |
| 5110879 | Miscible blends of polyimide polymers and process for forming the same | Tai-Shung Chung | 1992-05-05 |
| 5109107 | Polyamide-imide polymers having fluorine-containing linking groups | Paul N. Chen, Sr. | 1992-04-28 |
| 5101005 | Crosslinkable polyimides from bis (aminophenoxy) benzonitriles | Dinesh N. Khanna, Wolfgang Appel | 1992-03-31 |
| 5077383 | Novel hexafluoro polybenzimidazolone polymers | Paul N. Chen, Sr., Joseph D. Menczel | 1991-12-31 |
| 5075419 | Novel polybenzimidazolone polymers based hexafluoro aromatic tetraamines | — | 1991-12-24 |
| 5061784 | Polymers prepared from 4,4'-bis(3,4-dicarboxyphenyl) hexafluoroisopropyl) diphenyl dianhydride | Werner H. Mueller | 1991-10-29 |
| 5055550 | Polymers prepared from 4,4'-bis(2-[3,4(dicarboxyphenyl)hexafluoroisopropyl] diphenyl ether dianhydride | Werner H. Mueller, Dinesh N. Khanna, Ruediger J. Erckel | 1991-10-08 |
| 5037949 | Polymers prepared from 4,4'-bis[2-(amino (halo) phenoxyphenyl) hexafluoroisopropyl]diphenyl ether | Werner H. Mueller, Dinesh N. Khanna, Ruediger J. Erckel | 1991-08-06 |
| 5026822 | High molecular weight polyimide, method of making same and articles formed therefrom | — | 1991-06-25 |
| 5025089 | Copolyimides derived from 2,2-bis (amino phenyl) hexafluoropropane | Paul N. Chen, Sr. | 1991-06-18 |
| 4978737 | Copolyimides derived from 2,2-bis (amino phenyl) hexofluoropropane | — | 1990-12-18 |
| 4978742 | Polymers prepared from 2-(3-aminophenyl)-2-(4-aminophenyl) hexafluoro propane | Werner H. Mueller | 1990-12-18 |
| 4978738 | High molecular weight, thermally soluble polyimides | Werner H. Mueller, Dinesh N. Khanna | 1990-12-18 |
| 4973651 | Polyimide polymers having 12-F fluorine-containing linking groups | — | 1990-11-27 |
| 4963647 | Polyamide-imide polymers having 12-F fluorine-containing linking groups | Paul N. Chen, Sr., Jeffrey S. Devolve | 1990-10-16 |
| 4962183 | Polyimide-polyamide polymer having fluorine-containing linking groups | Paul N. Chen, Sr. | 1990-10-09 |
| 4962181 | Polyamide polymer having 12-F fluorine-containing linking groups | — | 1990-10-09 |
| 4954611 | Shaped articles from polyamide-imide polymers having fluorine containing linking groups | Paul N. Chen, Sr. | 1990-09-04 |
| 4954609 | Intermediate molecular weight fluorine containing polymide and method for preparation | — | 1990-09-04 |
| 4954610 | Polyamide-imide polymers having fluorine-containing linking groups | Paul N. Chen, Sr. | 1990-09-04 |
| 4952669 | Copolyimides prepared from 2-(3-aminophenyl)-2-(4-aminophenyl) Hexafluoro propane | — | 1990-08-28 |