Issued Patents All Time
Showing 1–5 of 5 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5232647 | Process of making bicomponent acrylic fibers having reversible crimp | Spero Sampanis, Ronald E. Pfeiffer, William E. Streetman, Maurice M. Zwick | 1993-08-03 |
| 5130195 | Reversible crimp bicomponent acrylic fibers | Spero Sampanis, Ronald E. Pfeiffer, William E. Streetman, Maurice M. Zwick | 1992-07-14 |
| 4515859 | Hydrophilic, water-absorbing acrylonitrile polymer fiber | William E. Streetman | 1985-05-07 |
| 4461739 | Continuous liquid phase process for melt spinning acrylonitrile polymer | Chi C. Young | 1984-07-24 |
| 4296175 | Hollow acrylonitrile polymer fiber | Ronald E. Pfeiffer | 1981-10-20 |