Issued Patents All Time
Showing 1–4 of 4 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 8649650 | Method for fabricating rare earth (RE) doped optical fiber using a new codopant | Ranjan Sen, Anirban Dhar, Himadri Sekhar Maiti | 2014-02-11 |
| 6889528 | Process of making rare earth doped optical fiber | Ranjan Sen, Minati Chatterjee, Milan Kanti Naskar, Mrinmay Pal, Shyamal Kumar Bhadra +4 more | 2005-05-10 |
| 6851281 | Method of fabricating rare earth doped optical fibre | Ranjan Sen, Mrinmay Pal, Shyamal Kumar Bhadra, Somesh Chatterjee, Kamal Dasgupta | 2005-02-08 |
| 6751990 | Process for making rare earth doped optical fiber | Tarun Bandyopadhyay, Ranjan Sen, Shyamal Kumar Bhadra, Kamal Dasgupta | 2004-06-22 |