Technology Hotbed · Climate & Environment
Photocatalytic Dye Degradation
Data as of 11 Oct 2026Methodology
Momentum: ▲ Rising
Across fully-published filing years - the current year is still publishing and is left out of the signal.
58
Patents
0
Startups matched
0
Foreign filers
Startup counts are name-matched candidates, not ownership records - see methodology. Methodology
Where it clusters
Matched startups by state
| State | Startups mapped |
|---|---|
| Bihar | 4 |
| Jharkhand | 3 |
| Delhi | 2 |
| Uttar Pradesh | 2 |
| Arunachal Pradesh | 1 |
| Tamil Nadu | 1 |
| West Bengal | 1 |
See photocatalytic dye degradation on the India map → Where its patents are filed, state by state and city by city, with companies, institutes and individual inventors apart.
Filing momentum
Filings by year - recent years still publishing
| Year | Filings | Foreign |
|---|---|---|
| 2022 | 2 | 0 |
| 2023 | 13 | 0 |
| 2024 | 11 | 0 |
| 2025 | 25 | 0 |
| 2026partial | 7 | 0 |
Patents publish ~18 months after they're filed, so the current year is always incomplete. The Rising / Steady / Cooling signal ignores it and compares only fully-published years - read a dip in the latest year as data still coming in, not a decline.
Who's filing
Indian companies lead - institutes & foreign kept separate
- GAURAV K SUKHADEVEIN · 2
- RUPESH S GEDAMIN · 2
- AMOL VIJAY SONAWANEIN · 1
- DHANSHRI VISHAL PATILIN · 1
- DR ZAGABATHUNI VENKATA PANCHAKSHARI MURTHYIN · 1
- MRS SHILPA R GEDAMIN · 1
Educational institutes (6) - ranked by grant rate (share of filings granted, sample-adjusted), not filing volume
- D Y PATIL EDUCATION SOCIETY DEEMED TO BE UNIVERSITY KASABA BAWADA KOLHAPUR1 of 1 granted
- INDIAN INSTITUTE OF TECHNOLOGY INDORE1 of 1 granted
- INDIAN INSTITUTE OF TECHNOLOGY JODHPUR1 of 1 granted
- INDIAN INSTITUTE OF TECHNOLOGY VARANASI1 of 1 granted
- JAYPEE INSTITUTE OF INFORMATION TECHNOLOGY1 of 1 granted
- PANJAB UNIVERSITY1 of 1 granted
Top inventors in this technology
The most prolific inventors filing in this technology, each linking to their full patent history.