C25B
Electrolytic or electrophoretic processes for the production of compounds or non-metals
Official title: ELECTROLYTIC OR ELECTROPHORETIC PROCESSES FOR THE PRODUCTION OF COMPOUNDS OR NON-METALS; APPARATUS THEREFOR (anodic or cathodic protection C23F13/00; single-crystal growth C30B)
C25B (Electrolytic or electrophoretic processes for the production of compounds or non-metals) appears on 10,309 US grants and 12,203 published applications in this corpus.
Search patents in C25B- Granted patents
- 10,309
- Published applications
- 12,203
- Assignees
- 4,100
- Inventors
- 22,583
- Latest grant
- 6 Oct 2026
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1976 | 189 | 0 |
| 1977 | 211 | 0 |
| 1978 | 249 | 0 |
| 1979 | 177 | 0 |
| 1980 | 235 | 0 |
| 1981 | 253 | 0 |
| 1982 | 215 | 0 |
| 1983 | 217 | 0 |
| 1984 | 268 | 0 |
| 1985 | 204 | 0 |
| 1986 | 180 | 0 |
| 1987 | 158 | 0 |
| 1988 | 137 | 0 |
| 1989 | 132 | 0 |
| 1990 | 122 | 0 |
| 1991 | 95 | 0 |
| 1992 | 116 | 0 |
| 1993 | 100 | 0 |
| 1994 | 109 | 0 |
| 1995 | 99 | 0 |
| 1996 | 95 | 0 |
| 1997 | 98 | 0 |
| 1998 | 91 | 0 |
| 1999 | 111 | 0 |
| 2000 | 95 | 0 |
| 2001 | 128 | 29 |
| 2002 | 103 | 103 |
| 2003 | 76 | 122 |
| 2004 | 79 | 193 |
| 2005 | 67 | 158 |
| 2006 | 66 | 147 |
| 2007 | 71 | 176 |
| 2008 | 87 | 236 |
| 2009 | 73 | 243 |
| 2010 | 103 | 272 |
| 2011 | 156 | 290 |
| 2012 | 168 | 357 |
| 2013 | 192 | 418 |
| 2014 | 213 | 476 |
| 2015 | 288 | 492 |
| 2016 | 276 | 516 |
| 2017 | 309 | 484 |
| 2018 | 341 | 494 |
| 2019 | 415 | 558 |
| 2020 | 370 | 558 |
| 2021 | 377 | 611 |
| 2022 | 415 | 798 |
| 2023 | 476 | 950 |
| 2024 | 508 | 1276 |
| 2025 | 596 | 1315 |
| 2026 | 400 | 931 |
By publication year. Applications have been published since 2001. 2026 runs to 8 Oct.
Main groups
Granted patents with any code in the group
- C25B 1/00Electrolytic production of inorganic compounds or non-metals6,053
- C25B 9/00Cells or assemblies of cells4,576
- C25B 11/00Electrodes3,462
- C25B 15/00Operating or servicing cells2,578
- C25B 3/00Electrolytic production of organic compounds1,677
- C25B 13/00Diaphragms1,110
- C25B 5/00Electrogenerative processes, i.e. processes for producing compounds in which electricity is generated127
- C25B 7/00Electrophoretic production of compounds or non-metals39
Recent patents
- Gas-less eluent generator6 Oct 2026US 12,753,517 B2Dionex Corporation
- Hydrogen production cathode and anode6 Oct 2026US 12,753,518 B2Civilized Power, LLC
- Electrochemical co-production of hydrogen and carbon monoxide6 Oct 2026US 12,753,519 B2Utility Global, Inc.
- Membrane electrode assembly for PEM water electrolysis capable of improving the electrical conductivity of the electrode layer and method of manufacturing thereof6 Oct 2026US 12,753,520 B2Korea Institute of Energy Research
- Electrocatalysts for H2O2 production6 Oct 2026US 12,753,521 B2The Regents of the University of California
- Oxygen reduction catalyst and use thereof8 Oct 2026US 2026/0307067 A1Toyota Jidosha Kabushiki Kaisha
- Polymerizable composition, ion exchange resin, ion exchange membrane, membrane electrode assembly, and hydrogen production device8 Oct 2026US 2026/0308295 A1Tokuyama 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.
Most cited
By later US patents
- Ionic semiconductor materials and applications thereof795US 5,055,171 AT and G Corporation · 1991
- Method and apparatus for the generation of nitric oxide499US 5,827,420 AWorld Precision Instruments, Inc. · 1998
- Electrochemical production of ozone and hydrogen peroxide465US 5,972,196 ALynntech, Inc. · 1999
- Apparatus for manipulating droplets by electrowetting-based techniques444US 6,911,132 B2Duke University · 2005
- Organic conductive films for semiconductor electrodes424US 4,461,691 AThe United States of America as represented by the United States Department of Energy · 1984