Issued Patents All Time
Showing 1–25 of 31 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5290908 | Acetylenic end-capped polyimides | — | 1994-03-01 |
| 4537947 | Chain-extending functional polyimides by dipole reactions | — | 1985-08-27 |
| 4528349 | Polymerization products of vinylacetylene-terminated polyimide derivatives | Phillip A. Waitkus | 1985-07-09 |
| 4528373 | Vinylacetylene-terminated polyimide derivatives | Phillip A. Waitkus | 1985-07-09 |
| 4520198 | Vinylacetylene-terminated polyimide derivatives | Phillip A. Waitkus | 1985-05-28 |
| 4517363 | Vinylacetylene-terminated polyimide derivatives | Phillip A. Waitkus | 1985-05-14 |
| 4517364 | Vinylacetylene-terminated polyimide derivatives | Phillip A. Waitkus | 1985-05-14 |
| 4517354 | Polysulfone compositions and derivatives thereof | — | 1985-05-14 |
| 4477439 | Treatment of irritated and excoriated areas around the stoma of ostomy patients | — | 1984-10-16 |
| 4451402 | Addition products of di-acetylene-terminated polyimide with a diaryl conjugated butadiyne | Phillip A. Waitkus | 1984-05-29 |
| 4451669 | Polyimide derivatives having terminal acetylenic groups | Phillip A. Waitkus | 1984-05-29 |
| 4435323 | Vinylacetylene-terminated polymide derivatives | Phillip A. Waitkus | 1984-03-06 |
| 4405786 | Addition products of di-acetylene-terminated polyimide derivatives and an dienophile having ethylene groups | Phillip A. Waitkus | 1983-09-20 |
| 4405521 | Addition products of di-acetylene-terminated polyimide derivatives with a polyimide having terminal ethylenic groups | Phillip A. Waitkus | 1983-09-20 |
| 4405520 | Addition products of di-acetylene-terminated polymide derivatives and dienophiles having terminal maleimide grops | Phillip A. Waitkus | 1983-09-20 |
| 4405519 | Di-Acetylene-terminated polyimide derivatives | Phillip A. Waitkus | 1983-09-20 |
| 4404139 | Addition products of terminally unsaturated polyimide derivatives with a diaryl conjugated butadiyne | Phillip A. Waitkus | 1983-09-13 |
| 4402878 | Addition products of di-acetylene-terminated polyimide derivatives with a polyimide having terminal non-conjugated acetylene groups | Phillip A. Waitkus | 1983-09-06 |
| 4402879 | Addition products of a di-acetylene-terminated polyimide derivatives and a dienophile having a non-conjugated acetylenic group | Phillip A. Waitkus | 1983-09-06 |
| 4377673 | Polymerization products of di-acetylene-terminated polyimide derivatives | Phillip A. Waitkus | 1983-03-22 |
| 4377536 | Polyamide derivatives having unsaturated terminal amic acid groups | Phillip A. Waitkus | 1983-03-22 |
| 4377525 | Addition products of diacetylene-terminated polyimide derivatives and a dienophile having a terminal vinyl group | Phillip A. Waitkus | 1983-03-22 |
| 4331794 | Polymerization products of diimides having terminal diacetylene groups | Phillip A. Waitkus | 1982-05-25 |
| 4331601 | Monomeric diimides having terminal conjugated diacetylene groups | Phillip A. Waitkus | 1982-05-25 |
| 4321198 | Polyimide derivatives having acetylenic amic acid groups | Phillip A. Waitkus | 1982-03-23 |