Issued Patents All Time
Showing 1–5 of 5 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 11447693 | Oil field chemical-carrying material and process for making the same | Chun-tian Zhao | 2022-09-20 |
| 5529430 | Reflective road stud | — | 1996-06-25 |
| 5352419 | Recovery of aluminium and fluoride values from spent pot lining | — | 1994-10-04 |
| 4822575 | Process for the purification of zirconium compounds | Kian F. Ngian, Angus J. Hartshorn | 1989-04-18 |
| 4746497 | Process for the production of high purity zirconia | Martin Richard Houchin, Hari N. Sinha | 1988-05-24 |