Technology Hotbed · Climate & Environment
Water Purification
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.
252
Patents
11
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
SWAJAL WATER PRIVATE LIMITED
Gurugram · Health & Life Sciences
DETOXYFI TECHNOLOGIES PRIVATE LIMITED
New Delhi · Materials & Nanotech
GREENGINE ENVIRONMENTAL TECHNOLOGIES PRIVATE LIMITED
Kanpur Nagar · Health & Life Sciences
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
SRISHTI LIFESCIENCE PRIVATE LIMITED
Vadodara · Energy
SRJX RESEARCH AND INNOVATION LAB LLP
Cuttack · Computing & AI
Waycool Foods and Products Pvt. Ltd.
Bengaluru Urban · Agri & Food
ZARNA WATER TECHNOLOGY
Shivamogga · Climate & Environment
A sample of matched deep-tech startups - Startup counts are name-matched candidates, not ownership records - see methodology. Methodology
Deep-tech basis: site-backed (own website fetched and read), IP-backed (patent or design filed in its own name), web-backed (described elsewhere on the open web), registry only (registry description alone). How this is decided
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 |
See water purification 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 | 34 | 14 |
| 2023 | 42 | 10 |
| 2024 | 83 | 20 |
| 2025 | 58 | 10 |
| 2026partial | 24 | 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 FORBESIN · 2
- DR SRINU BHOOMANDLA ASSISTANT PROFESSOR IN CHEMISTRY DEPARTMENT OF FRESHMAN ENGINEERING GEETHANJALI COLLEGE OF ENGINEERING AND TECHNOLOGYIN · 2
- DR L R CHARYIN · 1
- DR MEENAL MATEGAONKARIN · 1
- GAURANG GIRISH KULKARNIIN · 1
- HEMANT KUMAR JOSHIIN · 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.