Issued Patents 1989
Showing 1–8 of 8 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4889430 | Planetary gear extruder for the compounding and extrusion of plastic materials | — | 1989-12-26 |
| 4876851 | Infrared radiation screening device | — | 1989-10-31 |
| 4871859 | Process for preparing pyridine carboxylic acid esters | B. Franklin Gupton, James H. Rea | 1989-10-03 |
| 4866155 | Polester of bis(2-(hydroxyphenyl)-hexafluoroisopropyl)diphenyl ether | Dinesh N. Khanna | 1989-09-12 |
| 4845183 | Heat resistant polyamide and polybenzoxazole from bis-((amino-hydroxyphenyl)hexafluoroisopropyl)diphenyl ethers | Dinesh N. Khanna | 1989-07-04 |
| 4842705 | Method for manufacturing transparent conductive indium-tin oxide layers | — | 1989-06-27 |
| 4822868 | Polycarbonamide of bis(2-(4-carboxyphenyl)-hexafluoroisopropyl)diphenyl ether | Dinesh N. Khanna | 1989-04-18 |
| 4803147 | Photosensitive polyimide polymer compositions | Dinesh N. Khanna, Rohitkumar H. Vora | 1989-02-07 |