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Patent Theme

Electrolyzer Cell Components

Design and engineering of non-catalytic parts within an electrolysis cell or stack, such as separators, gaskets, flow fields, porous transport layers, and manifold devices, to improve efficiency, sealing, or gas management.

7,442 US filings from 1,442 companies since 2023 · 2023: 1,795 · 2024: 2,215 · 2025: 2,350 · 2026 YTD: 1,082

Electrolysis & Electrochemistry

Top companies

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

#CompanySince 20232023202420252026 YTDYoY
1Hyundai Motor Company49615611314681+29.2%
2Kia Corporation44711410514682+39.0%
3Robert Bosch GmbH315748710549+20.7%
4TOYOTA JIDOSHA KABUSHIKI KAISHA28379797352-7.6%
5HONDA MOTOR CO., LTD.23763608430+40.0%
6LG Energy Solution, Ltd.23647717048-1.4%
7Bloom Energy Corporation18540575236-8.8%
8GM GLOBAL TECHNOLOGY OPERATIONS LLC12813316024+93.5%
9KOLON INDUSTRIES, INC.11523472916-38.3%
10AUDI AG10241192913+52.6%
11Panasonic Intellectual Property Management Co., Ltd.10130322613-18.8%
12Reinz-Dichtungs-GmbH851827319+14.8%
1324M Technologies, Inc.808333360.0%
14Contemporary Amperex Technology Co., Limited806252029-20.0%
15KABUSHIKI KAISHA TOSHIBA808302418-20.0%
16Ningde Amperex Technology Limited7912183316+83.3%
17KYOCERA CORPORATION692216238+43.8%
18SIEMENS ENERGY GLOBAL GMBH & CO. KG671118308+66.7%
19ASAHI KASEI KABUSHIKI KAISHA592023124-47.8%
20HYDROGENICS CORPORATION572511174+54.5%
21SK IE Technology Co., Ltd.577211811-14.3%
22SK INNOVATION CO., LTD.56722198-13.6%
23TOSHIBA ENERGY SYSTEMS & SOLUTIONS CORPORATION541023147-39.1%
24Kia Motors Corporation493991·-88.9%
25Bayerische Motoren Werke Aktiengesellschaft43718135-27.8%