Issued Patents All Time
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 7592464 | Methods for producing and purifying 2-hydrocarbyl-3,3-bis(4-hydroxyaryl)phthalimidine monomers and polycarbonates derived therefrom | Rajshekhar Basale, Balakrishnan Ganesan, Venkata Rama Narayanan Ganapathy Bhotla, Gurram Kishan, Pushpa Narayanan +2 more | 2009-09-22 |
| 7371902 | Methods for purifying p,p-bisphenol-A | Ramachandran Kumar, Gomatam Raghavan Ravi, Gururaj Sathyanarayana, Sheldon J. Shafer, Kumar Krishna Ramamurthy +2 more | 2008-05-13 |