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Advanced Separation & Recovery Systems

Novel or optimized methods and apparatus for efficiently separating desired products, recovering valuable components, or managing effluents from complex hydrocarbon mixtures and refining processes.

9,213 US filings from 2,998 companies since 2023 · 2023: 2,750 · 2024: 2,742 · 2025: 2,611 · 2026 YTD: 1,110

Petroleum / Hydrocarbon Refining

Top companies

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

#CompanySince 20232023202420252026 YTDYoY
1SAUDI ARABIAN OIL COMPANY3571211149824-14.0%
2UOP LLC10426401919-52.5%
3EXXONMOBIL TECHNOLOGY AND ENGINEERING COMPANY10040331413-57.6%
4SK INNOVATION CO., LTD.941448248-50.0%
5CHEVRON U.S.A. INC.90103030200.0%
6MARATHON PETROLEUM COMPANY LP863426188-30.8%
7KING FAHD UNIVERSITY OF PETROLEUM AND MINERALS741317386+123.5%
8SK Geo Centric Co., Ltd.731244161-63.6%
9Waters Technologies Corporation681728149-50.0%
10SABIC GLOBAL TECHNOLOGIES B.V.6515142313+64.3%
11Eastman Chemical Company619232360.0%
12Neste Oyj5712132210+69.2%
13Chevron Phillips Chemical Company LP56241787-52.9%
14Donaldson Company, Inc.551715176+13.3%
15ExxonMobil Chemical Patents Inc.531222811-63.6%
16NGK INSULATORS, LTD.501116185+12.5%
17IFP Energies nouvelles461212193+58.3%
18Schlumberger Technology Corporation46117199+171.4%
19Cummins Emission Solutions Inc.421813101-23.1%
20SHIMADZU CORPORATION421112181+50.0%
21LG Chem, Ltd.40711148+27.3%
22Lummus Technology LLC40119155+66.7%
23BASF SE39915105-33.3%
24CHINA PETROLEUM & CHEMICAL CORPORATION38145154+200.0%
25NITTO DENKO CORPORATION38581213+50.0%