Technology Hotbed · Climate & Environment
water purification
Momentum: ▲ Rising
Across fully-published filing years — the current year is still publishing and is left out of the signal.
247
Patents
14
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
CHITKARA INNOVATION INCUBATOR FOUNDATION
Chandigarh · Health & Life Sciences
DetoXyFi
New Delhi · Materials & Nanotech
ENVIROGREEN MINETECH INDIA PRIVATE LIMITED
Indore · Climate & Environment
GREENGINE ENVIRONMENTAL TECHNOLOGIES PRIVATE LIMITED
Kanpur Nagar · Health & Life Sciences
Kyro Sonics Private Limited
Hyderabad · Climate & Environment
KYRO SONICS PRIVATE LIMITED
Ranga Reddy · Climate & Environment
LIBAMARE PRIVATE LIMITED
Hyderabad · Energy
MAAS RESEARCH SOLUTIONS LLP
Madurai · Climate & Environment
NATUREX AI TECHNOLOGIES PRIVATE LIMITED
Vadodara · Agri & Food
SRJX RESEARCH AND INNOVATION LAB LLP
Cuttack · Computing & AI
SWAJAL WATER PRIVATE LIMITED
Gurugram · Health & Life Sciences
Swajal Water Pvt. Ltd.
Gurugram · Health & Life Sciences
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 |
|---|---|
| Delhi | 2 |
| Karnataka | 2 |
| Telangana | 2 |
| Bihar | 1 |
| Madhya Pradesh | 1 |
| Tamil Nadu | 1 |
| Haryana | 1 |
| Chandigarh | 1 |
| Gujarat | 1 |
Filing momentum
Filings by year — recent years still publishing
| Year | Filings | Foreign |
|---|---|---|
| 2022 | 34 | 14 |
| 2023 | 42 | 10 |
| 2024 | 83 | 20 |
| 2025 | 58 | 10 |
| 2026partial | 23 | 2 |
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
- Eureka Forbes LtdIN · 2
- Dr. L.R.CharyIN · 1
- Dr.Meenal MategaonkarIN · 1
- Gaurang Girish KulkarniIN · 1
- Hemant Kumar JoshiIN · 1
- JITENDRA VISHWANATH WALUNJIN · 1
Educational institutes (6) — ranked by grant rate (share of filings granted, sample-adjusted), not filing volume
Top inventors in this technology
The most prolific inventors filing in this technology, each linking to their full patent history.