Issued Patents All Time
Showing 1–1 of 1 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4828816 | Process for producing sulphur from calcium sulphate | Igor G. Kostylkov, Oleg V. Rogachev, Igor A. Zhukov, Vladimir V. Zhizhin | 1989-05-09 |
Showing 1–1 of 1 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4828816 | Process for producing sulphur from calcium sulphate | Igor G. Kostylkov, Oleg V. Rogachev, Igor A. Zhukov, Vladimir V. Zhizhin | 1989-05-09 |