Issued Patents All Time
Showing 1–4 of 4 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 8809486 | Methods for producing and purifying 2-aryl-3,3-bis(4-hydroxyaryl)phthalimidine compounds, the purified monomers, and polymers derived therefrom | Venkata Rama Narayanan Ganapathy Bhotla, Balakrishnan Ganesan, Kishan Gurram, Salkod Parameshwar Mallika, Swaminathan Shubashree | 2014-08-19 |
| 8247523 | Methods for producing and purifying 2-aryl-3,3-bis(4-hydroxyaryl)phthalimidine compounds, the purified monomers, and polymers derived therefrom | Venkata Rama Narayanan Ganapathy Bhotla, Balakrishnan Ganesan, Kishan Gurram, Salkod Parameshwar Mallika, Swaminathan Shubashree | 2012-08-21 |
| 7790832 | Methods for purifying 2-aryl-3,3-bis(hydroxyaryl)phthalimidines | Balakrishnan Ganesan, Pradeep Nadkarni, Venkata Rama Narayanan Ganapathy Bhotla, Suresh Shanumgam, Gurram Kishan +1 more | 2010-09-07 |
| 7563817 | Purified 2-aryl-3,3-bis(hydroxyaryl)phthalimidines | Balakrishnan Ganesan, Pradeep Nadkarni, Venkata Rama Narayanan Ganapathy Bhotla, Suresh Shanmugam, Gurram Kishan +1 more | 2009-07-21 |