Technology Hotbed · Climate & Environment
water purification
Momentum: ▲ Rising
241
Patents
1
Startups matched
48
Foreign filers
Startup counts are name-matched candidates, not ownership records — see methodology. Methodology
Startups working on water purification
Deep-tech startups with a patent tagged this technology
A sample of matched deep-tech startups — Startup counts are name-matched candidates, not ownership records — see methodology. Methodology
Where it clusters
Matched startups by state
| State | Startups mapped |
|---|---|
| Telangana | 3 |
| Delhi | 2 |
| Haryana | 1 |
| Bihar | 1 |
| Madhya Pradesh | 1 |
| Tamil Nadu | 1 |
| Karnataka | 1 |
| Chandigarh | 1 |
Filing momentum
2022 onward
| Year | Filings | Foreign |
|---|---|---|
| 2022 | 34 | 14 |
| 2023 | 42 | 10 |
| 2024 | 83 | 20 |
| 2025 | 58 | 10 |
| 2026 | 23 | 2 |
Who's filing
Indian companies lead — institutes & foreign kept separate
Educational institutes (6) — high filing volume, separate from company R&D
Foreign filers (1)
Top inventors in this technology
The most prolific inventors filing in this technology, each linking to their full patent history.