C25
Electrolytic or electrophoretic processes
Official title: Electrolytic or electrophoretic processes; apparatus therefor
C25 (Electrolytic or electrophoretic processes) appears on 29,770 US grants and 30,995 published applications in this corpus.
Search patents in C25- Granted patents
- 29,770
- Published applications
- 30,995
- Assignees
- 9,520
- Inventors
- 59,611
- Latest grant
- 6 Oct 2026
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1976 | 508 | 0 |
| 1977 | 553 | 0 |
| 1978 | 612 | 0 |
| 1979 | 444 | 0 |
| 1980 | 498 | 0 |
| 1981 | 532 | 0 |
| 1982 | 407 | 0 |
| 1983 | 547 | 0 |
| 1984 | 660 | 0 |
| 1985 | 527 | 0 |
| 1986 | 479 | 0 |
| 1987 | 453 | 0 |
| 1988 | 391 | 0 |
| 1989 | 394 | 0 |
| 1990 | 391 | 0 |
| 1991 | 324 | 0 |
| 1992 | 367 | 0 |
| 1993 | 347 | 0 |
| 1994 | 353 | 0 |
| 1995 | 369 | 0 |
| 1996 | 319 | 0 |
| 1997 | 320 | 0 |
| 1998 | 366 | 0 |
| 1999 | 404 | 0 |
| 2000 | 435 | 0 |
| 2001 | 573 | 163 |
| 2002 | 529 | 557 |
| 2003 | 488 | 714 |
| 2004 | 493 | 1003 |
| 2005 | 401 | 894 |
| 2006 | 394 | 869 |
| 2007 | 390 | 818 |
| 2008 | 369 | 830 |
| 2009 | 337 | 902 |
| 2010 | 494 | 1047 |
| 2011 | 530 | 978 |
| 2012 | 601 | 1073 |
| 2013 | 646 | 1219 |
| 2014 | 653 | 1289 |
| 2015 | 814 | 1422 |
| 2016 | 827 | 1541 |
| 2017 | 1008 | 1364 |
| 2018 | 1002 | 1369 |
| 2019 | 1175 | 1367 |
| 2020 | 1109 | 1391 |
| 2021 | 978 | 1348 |
| 2022 | 992 | 1547 |
| 2023 | 1016 | 1748 |
| 2024 | 1102 | 2113 |
| 2025 | 1105 | 1998 |
| 2026 | 744 | 1431 |
By publication year. Applications have been published since 2001. 2026 runs to 8 Oct.
Subclasses
Granted patents
- C25DProcesses for the electrolytic or electrophoretic production of coatings15,494
- C25BElectrolytic or electrophoretic processes for the production of compounds or non-metals10,309
- C25CProcesses for the electrolytic production, recovery or refining of metals3,409
- C25FProcesses for the electrolytic removal of materials from objects2,031
Recent patents
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- Manufacturing method for tinplate6 Oct 2026US 12,752,324 B2Institute of Research of Iron and Steel, Jiangsu Province/Sha-Steel, Co. Ltd (Cn)
- Heat exchanger6 Oct 2026US 12,753,336 B2Daikin Industries, Ltd.
- High-strength electrogalvannealed steel sheet and method for manufacturing the same6 Oct 2026US 12,753,456 B2Jfe Steel Corporation
- Method for forming robust hydrophobic surfaces on steel workpiece6 Oct 2026US 12,753,490 B2Hong Kong Applied Science and Technology Research Institute Company Limited
- 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
- Temporary stent and methods for use and manufacture762US 5,449,372 AScimed Lifesystems, Inc. · 1995
- Microchip drug delivery devices675US 5,797,898 AMassachusetts Institute of Technology · 1998
- Protective coating system for aluminum556US 5,104,514 AThe United States of America as represented by the Secretary of the Navy · 1992
- Chip interconnect and packaging deposition methods and structures556US 7,147,766 B2ASM Nutool, Inc. · 2006