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Patent Theme

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.

8,732 US filings from 2,894 companies since 2023 · 2023: 2,269 · 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 COMPANY333971149824-14.0%
2UOP LLC10224401919-52.5%
3EXXONMOBIL TECHNOLOGY AND ENGINEERING COMPANY9333331413-57.6%
4SK INNOVATION CO., LTD.921248248-50.0%
5CHEVRON U.S.A. INC.8883030200.0%
6MARATHON PETROLEUM COMPANY LP833126188-30.8%
7KING FAHD UNIVERSITY OF PETROLEUM AND MINERALS711017386+123.5%
8SK Geo Centric Co., Ltd.711044161-63.6%
9Waters Technologies Corporation641328149-50.0%
10Eastman Chemical Company619232360.0%
11SABIC GLOBAL TECHNOLOGIES B.V.6111142313+64.3%
12Chevron Phillips Chemical Company LP53211787-52.9%
13Donaldson Company, Inc.531515176+13.3%
14Neste Oyj538132210+69.2%
15ExxonMobil Chemical Patents Inc.521122811-63.6%
16NGK INSULATORS, LTD.491016185+12.5%
17IFP Energies nouvelles43912193+58.3%
18Schlumberger Technology Corporation4277199+171.4%
19Cummins Emission Solutions Inc.391513101-23.1%
20SHIMADZU CORPORATION39812181+50.0%
21LG Chem, Ltd.38511148+27.3%
22Lummus Technology LLC3899155+66.7%
23BASF SE37715105-33.3%
24MANN+HUMMEL GmbH379111160.0%
25NITTO DENKO CORPORATION36381213+50.0%