Issued Patents All Time
Showing 26–50 of 52 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4425441 | Closed cell polyimide foams and methods of making same | John V. Long | 1984-01-10 |
| 4407980 | Closed cell polyimide foams and methods of making same | John V. Long | 1983-10-04 |
| 4394464 | Modified polyimide foams and methods of making same | John V. Long | 1983-07-19 |
| 4369261 | Polyimide foams | Raymond Lee, Usman A. K. Sorathia | 1983-01-18 |
| 4367296 | Structural materials and components | Raymond Lee | 1983-01-04 |
| 4363690 | Structural materials and components | Raymond Lee | 1982-12-14 |
| 4363883 | Structural materials and components | Raymond Lee | 1982-12-14 |
| 4361453 | Methods of preparing polyimides and artifacts composed thereof | Raymond Lee, Anthony L. Wilcoxson | 1982-11-30 |
| 4360604 | Polyimide foams | Raymond Lee, Usman A. K. Sorathia | 1982-11-23 |
| 4355120 | Polyimide foams | Raymond Lee, Usman A. K. Sorathia | 1982-10-19 |
| 4353998 | Structural materials and components | Raymond Lee | 1982-10-12 |
| 4346182 | Polyimides | Raymond Lee | 1982-08-24 |
| 4332656 | Polyimide foams | Raymond Lee, Usman A. K. Sorathia | 1982-06-01 |
| 4319000 | Closed cell polyimides | John V. Long | 1982-03-09 |
| 4315076 | Polyimides | Raymond Lee | 1982-02-09 |
| 4315077 | Polyimides | Raymond Lee | 1982-02-09 |
| 4315080 | Polyimides | Raymond Lee | 1982-02-09 |
| 4305796 | Methods of preparing polyimides and artifacts composed thereof | Raymond Lee, Anthony L. Wilcoxson | 1981-12-15 |
| 4299787 | Melt spinning polyimide fibers | — | 1981-11-10 |
| 4296208 | Methods of preparing polyimides and polyimide precursors | Usman A. K. Sorathia | 1981-10-20 |
| 4273886 | Polyimides | — | 1981-06-16 |
| 4255488 | Polyimide fibers | — | 1981-03-10 |
| 4241193 | Polyimides | — | 1980-12-23 |
| 4241114 | Polyimides | — | 1980-12-23 |
| RE30213 | Method of making foamed copolyimides and product obtained therefrom | John V. Long | 1980-02-12 |