Issued Patents 1994
Showing 1–3 of 3 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5340558 | Vermiculite composition with improved thermal expansion properties | Semyon D. Friedman, Robert W. McKinney, Chia-Chih Ou, Shaohai Wu | 1994-08-23 |
| 5326500 | Vermiculite composition with improved chemical exfoliation | Semyon D. Friedman, Robert W. McKinney, Chia-Chih Ou, Shaohai Wu | 1994-07-05 |
| 5281491 | Battery separator | Burton M. Rein, Howard J. Troffkin, Richard T. Giovannoni, Yihong Guo | 1994-01-25 |