Issued Patents 2011
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 7915430 | Catalytic method for producing phenolphthalein compounds | Shivappa Basappa Halligudi, Gurram Kishan, Salkod Parameshwar Mallika, Bhaskar Veldurthy | 2011-03-29 |
| 7868190 | Method for producing phenolphthalein using a heteropolyacid catalyst | Shivappa Basappa Halligudi, Gurram Kishan, Salkod Parameshwar Mallika, Bhaskar Veldurthy | 2011-01-11 |