Water Contaminant Remediation

Systems and methods specifically engineered for removing pollutants and impurities from water sources, ranging from groundwater decontamination to point-of-use filtration, often employing adsorption, membrane, or distillation techniques.

4,402 US filings from 1,783 companies since 2023 · 2023: 1,229 · 2024: 1,299 · 2025: 1,305 · 2026 YTD: 569

Separation Processes (Filtration, Distillation)

Top companies

Ranked by filings in this theme since 2023. 2026 is partial.

#	Company	Since 2023	2023	2024	2025	2026 YTD	YoY
1	SAUDI ARABIAN OIL COMPANY	80	19	26	30	5	+15.4%
2	Evoqua Water Technologies LLC	67	21	19	20	7	+5.3%
3	ORGANO CORPORATION	54	15	17	18	4	+5.9%
4	COWAY Co., Ltd.	50	10	15	17	8	+13.3%
5	KING FAHD UNIVERSITY OF PETROLEUM AND MINERALS	48	9	8	22	9	+175.0%
6	Imam Abdulrahman Bin Faisal University	42	15	22	4	1	-81.8%
7	SAMSUNG ELECTRONICS CO., LTD.	38	13	3	12	10	+300.0%
8	KURITA WATER INDUSTRIES LTD.	33	6	9	12	6	+33.3%
9	LG ELECTRONICS INC.	30	8	4	9	9	+125.0%
10	Ecolab USA Inc.	25	5	11	5	4	-54.5%
11	Claros Technologies Inc.	23	·	2	14	7	+600.0%
12	IMAM MOHAMMAD IBN SAUD ISLAMIC UNIVERSITY	23	·	·	19	4	—
13	BAXTER INTERNATIONAL INC.	18	3	7	5	3	-28.6%
14	CORE PACIFIC INC.	18	2	12	3	1	-75.0%
15	BAXTER HEALTHCARE SA	17	3	6	5	3	-16.7%
16	CRYSTAL LAGOONS TECHNOLOGIES, INC.	17	3	5	7	2	+40.0%
17	Donaldson Company, Inc.	17	10	4	1	2	-75.0%
18	KEMFLO INTERNATIONAL CO., LTD.	17	10	1	4	2	+300.0%
19	Robert Bosch GmbH	17	7	2	7	1	+250.0%
20	NOMURA MICRO SCIENCE CO., LTD.	16	5	4	4	3	0.0%
21	Genesis Systems LLC	15	4	·	8	3	—
22	MASSACHUSETTS INSTITUTE OF TECHNOLOGY	15	10	·	3	2	—
23	NANJING UNIVERSITY	15	6	5	3	1	-40.0%
24	Panasonic Intellectual Property Management Co., Ltd.	15	2	5	4	4	-20.0%
25	Water Harvesting, Inc.	15	3	5	7	·	+40.0%