Issued Patents All Time
Showing 1–3 of 3 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, Hyacinth Mary Bastian, Balakrishnan Ganesan, Venkata Rama Narayanan Ganapathy Bhotla, Gurram Kishan +2 more | 2009-09-22 |
| 7541417 | Process for the purification of dihydric phenols | Sunil Ashtekar, Mahesh Malusare, Gurram Kishan, Ramanarayanan GV, Arun Dixit +2 more | 2009-06-02 |
| 7528210 | Method of purification of dihydric phenols | Guohua Xiu, Tong Sun, Jan Plen Lens, Sunil Ashtekar, Mahesh Malusare +1 more | 2009-05-05 |