Issued Patents All Time
Showing 1–7 of 7 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5233014 | Rapid advancement of molecular weight in polybenzazole oligomer dopes | Thomas D. Gregory, Harvey D. Ledbetter, Kenneth J. Quackenbush, Steven Rosenberg | 1993-08-03 |
| 5219981 | Semi-continuous process for synthesis of polybenzazole polymers | Thomas D. Gregory, Harvey D. Ledbetter, Kenneth J. Quackenbush, Steven Rosenberg | 1993-06-15 |
| 5210171 | Process to polymerize AB-PBO monomer phosphate salts | William J. Harris, Zenon Lysenko | 1993-05-11 |
| 5194568 | Staged polymerization of polybenzazole polymers | Thomas D. Gregory, Harvey D. Ledbetter, Kenneth J. Quackenbush, Steven Rosenberg, Ying H. So | 1993-03-16 |
| 5089591 | Rapid advancement of molecular weight in polybenzazole oligomer dopes | Thomas D. Gregory, Harvey D. Ledbetter, Kenneth J. Quackenbush, Steven Rosenberg | 1992-02-18 |
| 5068384 | Phosphate salts of AB-polybenzoxazole monomer | William J. Harris, Zenon Lysenko | 1991-11-26 |
| 4959492 | Process to synthesize AB-PBO monomer and phosphate salts thereof | William J. Harris, Zenon Lysenko | 1990-09-25 |