| # | Country | Total Patents | |
|---|---|---|---|
| #1 | India | 13 |
| # | Industry | |
|---|---|---|
| #1 | Materials and metallurgy |
| # | Technology | |
|---|---|---|
| #1 | Rare-earth metal compounds |
| # | Name | Total Patents |
|---|---|---|
| #1 | Rattan Lal | 5 |
| #2 | Raghavendra Narasimhamurthy | 3 |
| #3 | Subramanian Ramachandran | 3 |
| #4 | Visvesvaraya Hosagrahar Chandr | 3 |
| #5 | Maiti Subhash Chandra | 3 |
| #6 | Kumar Kamal | 2 |
| #7 | Kayal Sulata | 2 |
| #8 | Mullick Ajoy Kumar | 2 |
| #9 | Raina Shiban Ji | 2 |
| #10 | Rao Maddali Venkata Ranga | 2 |