Advanced Adsorbent & Separation Media

Development of materials with tailored porosity, surface chemistry, or structure, such as metal-organic frameworks (MOFs), zeolites, or superficially porous particles, for selective adsorption, ion exchange, or chromatographic separations.

4,672 US filings from 1,631 companies since 2023 · 2023: 1,308 · 2024: 1,435 · 2025: 1,342 · 2026 YTD: 587

Separation Processes (Filtration, Distillation)Catalysts & ReactorsAcyclic / Cyclic Compounds (Other Elements)

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	175	52	54	52	17	-3.7%
2	LG Chem, Ltd.	97	26	26	30	15	+15.4%
3	EXXONMOBIL TECHNOLOGY AND ENGINEERING COMPANY	86	17	36	23	10	-36.1%
4	NGK INSULATORS, LTD.	78	21	26	22	9	-15.4%
5	King Abdullah University of Science and Technology	73	24	28	16	5	-42.9%
6	KING FAHD UNIVERSITY OF PETROLEUM AND MINERALS	72	23	15	30	4	+100.0%
7	CHEVRON U.S.A. INC.	68	28	14	9	17	-35.7%
8	Waters Technologies Corporation	68	15	27	18	8	-33.3%
9	CHINA PETROLEUM & CHEMICAL CORPORATION	53	18	11	15	9	+36.4%
10	BASF CORPORATION	50	19	17	9	5	-47.1%
11	The Regents of the University of California	44	13	13	11	7	-15.4%
12	BASF SE	40	15	10	12	3	+20.0%
13	GEORGIA TECH RESEARCH CORPORATION	36	13	8	13	2	+62.5%
14	W. L. Gore & Associates, Inc.	34	14	16	3	1	-81.2%
15	TOYOTA JIDOSHA KABUSHIKI KAISHA	30	5	8	13	4	+62.5%
16	CALGON CARBON CORPORATION	29	4	13	8	4	-38.5%
17	Johnson Matthey Public Limited Company	29	10	10	8	1	-20.0%
18	KING FAISAL UNIVERSITY	26	2	21	3	·	-85.7%
19	Lawrence Livermore National Security, LLC	25	8	10	5	2	-50.0%
20	UOP LLC	25	3	10	5	7	-50.0%
21	ENTEGRIS, INC.	22	8	7	7	·	0.0%
22	FUJIFILM CORPORATION	22	4	6	8	4	+33.3%
23	Imam Abdulrahman Bin Faisal University	22	2	12	5	3	-58.3%
24	California Institute of Technology	21	7	6	5	3	-16.7%
25	DIC Corporation	21	6	9	4	2	-55.6%