C25B 15/00
Operating or servicing cells
C25B15/00 (Operating or servicing cells) appears on 2,578 US grants and 4,556 published applications in this corpus.
Search patents in C25B- Granted patents
- 2,578
- Published applications
- 4,556
- Assignees
- 1,655
- Inventors
- 7,903
- Latest grant
- 6 Oct 2026
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1976 | 24 | 0 |
| 1977 | 18 | 0 |
| 1978 | 29 | 0 |
| 1979 | 21 | 0 |
| 1980 | 33 | 0 |
| 1981 | 26 | 0 |
| 1982 | 19 | 0 |
| 1983 | 28 | 0 |
| 1984 | 27 | 0 |
| 1985 | 14 | 0 |
| 1986 | 14 | 0 |
| 1987 | 13 | 0 |
| 1988 | 13 | 0 |
| 1989 | 18 | 0 |
| 1990 | 12 | 0 |
| 1991 | 7 | 0 |
| 1992 | 10 | 0 |
| 1993 | 10 | 0 |
| 1994 | 13 | 0 |
| 1995 | 14 | 0 |
| 1996 | 15 | 0 |
| 1997 | 15 | 0 |
| 1998 | 19 | 0 |
| 1999 | 10 | 0 |
| 2000 | 14 | 0 |
| 2001 | 13 | 7 |
| 2002 | 18 | 25 |
| 2003 | 17 | 23 |
| 2004 | 19 | 49 |
| 2005 | 9 | 45 |
| 2006 | 15 | 23 |
| 2007 | 18 | 38 |
| 2008 | 18 | 53 |
| 2009 | 16 | 59 |
| 2010 | 21 | 63 |
| 2011 | 28 | 69 |
| 2012 | 37 | 90 |
| 2013 | 47 | 132 |
| 2014 | 58 | 122 |
| 2015 | 79 | 134 |
| 2016 | 80 | 174 |
| 2017 | 80 | 140 |
| 2018 | 108 | 153 |
| 2019 | 142 | 211 |
| 2020 | 115 | 183 |
| 2021 | 132 | 238 |
| 2022 | 155 | 370 |
| 2023 | 217 | 480 |
| 2024 | 241 | 612 |
| 2025 | 267 | 645 |
| 2026 | 192 | 418 |
By publication year. Applications have been published since 2001. 2026 runs to 8 Oct.
Subgroups
Granted patents
Recent patents
- Electrochemical co-production of hydrogen and carbon monoxide6 Oct 2026US 12,753,519 B2Utility Global, Inc.
- Electrolysis cell, electrolyzer and method for reducing CO26 Oct 2026US 12,753,522 B2Covestro Intellectual Property GmbH & Co.KG
- Production of chlorine, carbon monoxide and optionally hydrogen29 Sep 2026US 12,747,507 B2
- System and methods of water electrolysis29 Sep 2026US 12,747,509 B2Schlumberger Technology Corporation
- Multi-cell COx electrolyzer stacks29 Sep 2026US 12,747,510 B2Twelve Benefit Corporation
- Ammonia cracker8 Oct 2026US 2026/0308771 A1
- Gas generator for a tool, usage of the gas generator and a tool with a gas generator8 Oct 2026US 2026/0308772 A1Hilti Aktiengesellschaft
- Scalable automated oxyhydrogen-production, storage, and utilization system8 Oct 2026US 2026/0308773 A1Enertopia Corp.
- System and Methods for Controlling Material Synthesis via Electrochemical Reactions8 Oct 2026US 2026/0308774 A1Quantom Corporation
- Co2 and h2o co-electrolyser system8 Oct 2026US 2026/0308775 A1Ecole Polytechnique Federale De Lausanne (Epfl)
Most cited
By later US patents
- Method and apparatus for the generation of nitric oxide499US 5,827,420 AWorld Precision Instruments, Inc. · 1998
- High pressure electrolyzer module197US 6,554,978 B1Vandenborre Technologies NV · 2003
- Electrolyser and components therefor190US 8,057,646 B2Hydrogenics Corporation · 2011
- Electrolysis of carbon dioxide in aqueous media to carbon monoxide and hydrogen for production of methanol141US 7,704,369 B2University of Southern California · 2010
- Optimizing photovoltaic-electrolyzer efficiency138US 7,906,007 B2GM Global Technology Operations LLC · 2011