Technology Hotbed · Climate & Environment
Photocatalytic Water Treatment
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.
56
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
No matched startups have surfaced a state for this technology yet - coverage is patent-only.
See photocatalytic water treatment 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 | 3 | 0 |
| 2023 | 7 | 0 |
| 2024 | 18 | 0 |
| 2025 | 16 | 0 |
| 2026partial | 11 | 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
- DR JASVIRIN · 1
- DR M CHAMUNDEESWARIIN · 1
- DR NARENDRA SINGHIN · 1
- DR SANJEEV KUMARIN · 1
- DR SMITA KORPALIN · 1
- DR SUPREETIN · 1
Educational institutes (6) - ranked by grant rate (share of filings granted, sample-adjusted), not filing volume
- NATIONAL INSTITUTE OF TECHNOLOGY ROURKELA1 of 1 granted
- INDIAN INSTITUTE OF TECHNOLOGY HYDERABAD1 of 2 granted
- CHAUDHARY CHARAN SINGH UNIVERSITY MEERUT1 of 3 granted
- SHARDA UNIVERSITY1 of 3 granted
- SHOOLINI UNIVERSITY OF BIOTECHNOLOGY AND MANAGEMENT SCIENCES1 of 9 granted
- B V RAJU INSTITUTE OF TECHNOLOGY0 of 1 granted
Top inventors in this technology
The most prolific inventors filing in this technology, each linking to their full patent history.