Issued Patents All Time
Showing 1–1 of 1 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 7481908 | System and a process for obtaining high purity phenanthrene from phenanthrene enriched coal tar fraction | Kaushal Kishore Tiwari, Sukuru Ramakrishna Rao, Sanjay Kumar Thakur | 2009-01-27 |