Issued Patents All Time
Showing 1–5 of 5 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 7589230 | Process for the preparation of diphenic acid | Kaushal Kishore Tiwari, Kumares Chandra Bit, Sanjay Kumar Thakur, Kamlesh Kumar Mishra | 2009-09-15 |
| 7481908 | System and a process for obtaining high purity phenanthrene from phenanthrene enriched coal tar fraction | Kaushal Kishore Tiwari, Sanjay Kumar Thakur, Somnath Banerji | 2009-01-27 |
| 7291199 | Process for the production of a plant growth stimulator from fly ash | Swapan Kumar Ghosh, Gulab Singh, Sushanta Hazra | 2007-11-06 |
| 6702890 | Process for the production of fly ash slurry | Swapan Kumar Ghosh, Sibendra Kumar Basu, Barun Kumar Mall, Shreekant Verma, Gulab Singh +1 more | 2004-03-09 |
| 6419620 | Process for the production of a fly ash slurry | Swapan Kumar Ghosh, Sibcndra Kumar Basu, Barun Kumar Mall, Shreekant Verma, Gulab Singh +1 more | 2002-07-16 |