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, Kumar Arun Satyanarayana | 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, Kumar Arun Satyanarayana | 2012-08-21 |
| 8202960 | Bisphenol compounds and methods of making | Jean-Francois Morizur | 2012-06-19 |
| 7592464 | Methods for producing and purifying 2-hydrocarbyl-3,3-bis(4-hydroxyaryl)phthalimidine monomers and polycarbonates derived therefrom | Rajshekhar Basale, Hyacinth Mary Bastian, Balakrishnan Ganesan, Venkata Rama Narayanan Ganapathy Bhotla, Gurram Kishan +2 more | 2009-09-22 |