Issued Patents All Time
Showing 1–14 of 14 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 9340502 | 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, Kishan Gurram, Salkod Parameshwar Mallika, Arun Kumar, Shubashree Swaminathan | 2016-05-17 |
| 8975346 | Polycarbonate copolymers via controlled radical polymerization | Meghna Markanday, Theo Hoeks, Jan Henk Kamps | 2015-03-10 |
| 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, Kishan Gurram, Salkod Parameshwar Mallika, Kumar Arun Satyanarayana, 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, Kishan Gurram, Salkod Parameshwar Mallika, Kumar Arun Satyanarayana, Swaminathan Shubashree | 2012-08-21 |
| 7915332 | Compositions and methods for polymer composites | Kwok Pong Chan, Joshua Croll, Marcus J. Harrigan, Farid Fouad Khouri, Gurram Kishan +4 more | 2011-03-29 |
| 7863209 | Methods for recycling catalyst compositions for aromatic ring halogenation | Pradeep Nadkarni, Robert Edgar Colborn, Dan Hancu | 2011-01-04 |
| 7842188 | Method for removal of guanidine compound from aqueous media | David Bruce Hall, Thomas Link Guggenheim, James Manio Silva, Farid Fouad Khouri, Matthew Hal Littlejohn +2 more | 2010-11-30 |
| 7790832 | Methods for purifying 2-aryl-3,3-bis(hydroxyaryl)phthalimidines | Pradeep Nadkarni, Kumar Arun Satyanarayana, Venkata Rama Narayanan Ganapathy Bhotla, Suresh Shanumgam, Gurram Kishan +1 more | 2010-09-07 |
| 7763760 | Catalyst composition and method for halogenating aromatic compounds | Pradeep Nadkarni | 2010-07-27 |
| 7592464 | Methods for producing and purifying 2-hydrocarbyl-3,3-bis(4-hydroxyaryl)phthalimidine monomers and polycarbonates derived therefrom | Rajshekhar Basale, Hyacinth Mary Bastian, Venkata Rama Narayanan Ganapathy Bhotla, Gurram Kishan, Pushpa Narayanan +2 more | 2009-09-22 |
| 7563817 | Purified 2-aryl-3,3-bis(hydroxyaryl)phthalimidines | Pradeep Nadkarni, Kumar Arun Satyanarayana, Venkata Rama Narayanan Ganapathy Bhotla, Suresh Shanmugam, Gurram Kishan +1 more | 2009-07-21 |
| 7514524 | Methods for producing and purifying 2-hydrocarbyl-3,3-bis(4-hydroxyaryl)phthalimidine monomers and polycarbonates derived therefrom | Rajshekhar Basale, Venkata Rama Narayanan Ganapathy Bholta, Gurram Kishan, Surendra Kulkarni, Pradeep Nadkarni +2 more | 2009-04-07 |
| 7348439 | 2-aryl-3-(aminoaryl)-3-(hydroxyaryl)phthalimidine compounds and methods for making them | Gurram Kishan, Pradeep Nadkarni, Vinod Kumar Rai, C. Seetharaman | 2008-03-25 |
| 7329720 | Methods for increasing the mean particle size of 2-hydrocarbyl-3,3-bis(hydroxyaryl)phthalimidines | Pradeep Nadkarni | 2008-02-12 |