| # | Country | Total Patents | |
|---|---|---|---|
| #1 | India | 42 | |
| #2 | United Kingdom | 2 | |
| #3 | Brazil | 1 | |
| #4 | EPO (European Patent Office) | 1 | |
| #5 | Greece | 1 | |
| #6 | Ireland | 1 | |
| #7 | Norway | 1 |
| # | Industry | |
|---|---|---|
| #1 | Materials and metallurgy | |
| #2 | Electrical machinery and energy | |
| #3 | Environmental technology |
| # | Name | Total Patents |
|---|---|---|
| #1 | Choudhury D | 10 |
| #2 | Sah Kailash Chandra | 7 |
| #3 | Sah K | 6 |
| #4 | Kapoor R | 4 |
| #5 | Soni Vasantlal Bhavanji | 3 |
| #6 | Basu Roy Choudhury Rathindra | 3 |
| #7 | Sivasankaran Kanjirampara | 3 |
| #8 | Ghosh Bhawani Prosad | 3 |
| #9 | Swaminathan Krishnasamy | 3 |
| #10 | Surana Kailash Chandra | 2 |
| Publication | Filing date | Title |
|---|---|---|
| IE801116L | Manganous sulphate solution | |
| GB2073865A | Signal lanterns for optional coloured light emittance | |
| EP0037863A1 | Process for making manganous sulphate solution | |
| GB2051023A | Process for making manganous sulphate solution |