Issued Patents All Time
Showing 1–4 of 4 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 6342153 | Pillared clay catalysts for heavy oil catalytic pyrolisis process and the preparation method thereof | Xieqing Wang, Zhiqing Yu, Zhengyu Chen, Qinglin Liu, Yi-Liang Liao | 2002-01-29 |
| 5672264 | Methods of using stable supergallery pillared clay compositions | Thomas J. Pinnavaia | 1997-09-30 |
| 5583082 | Stable supergallery pillared clay compositions | Thomas J. Pinnavaia | 1996-12-10 |
| 4757040 | Class of pillared interlayered clay molecular sieve products with regularly interstratified mineral structure | Enze Min, Zhiqing Yu | 1988-07-12 |