C25F 3/20
Of aluminium
Official title: of aluminium
C25F3/20 (Of aluminium) appears on 50 US grants and 60 published applications in this corpus.
Search patents in C25F- Granted patents
- 50
- Published applications
- 60
- Assignees
- 58
- Inventors
- 156
- Latest grant
- 24 Feb 2026
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1976 | 1 | 0 |
| 1977 | 0 | 0 |
| 1978 | 0 | 0 |
| 1979 | 0 | 0 |
| 1980 | 0 | 0 |
| 1981 | 1 | 0 |
| 1982 | 0 | 0 |
| 1983 | 0 | 0 |
| 1984 | 0 | 0 |
| 1985 | 0 | 0 |
| 1986 | 0 | 0 |
| 1987 | 0 | 0 |
| 1988 | 2 | 0 |
| 1989 | 0 | 0 |
| 1990 | 0 | 0 |
| 1991 | 2 | 0 |
| 1992 | 1 | 0 |
| 1993 | 0 | 0 |
| 1994 | 0 | 0 |
| 1995 | 1 | 0 |
| 1996 | 1 | 0 |
| 1997 | 1 | 0 |
| 1998 | 1 | 0 |
| 1999 | 0 | 0 |
| 2000 | 2 | 0 |
| 2001 | 0 | 0 |
| 2002 | 1 | 0 |
| 2003 | 1 | 1 |
| 2004 | 0 | 1 |
| 2005 | 0 | 0 |
| 2006 | 0 | 1 |
| 2007 | 2 | 1 |
| 2008 | 0 | 4 |
| 2009 | 0 | 1 |
| 2010 | 1 | 2 |
| 2011 | 1 | 0 |
| 2012 | 0 | 1 |
| 2013 | 1 | 3 |
| 2014 | 1 | 3 |
| 2015 | 0 | 1 |
| 2016 | 2 | 7 |
| 2017 | 4 | 7 |
| 2018 | 1 | 3 |
| 2019 | 1 | 2 |
| 2020 | 8 | 4 |
| 2021 | 2 | 3 |
| 2022 | 5 | 5 |
| 2023 | 1 | 4 |
| 2024 | 4 | 2 |
| 2025 | 0 | 3 |
| 2026 | 1 | 1 |
By publication year. Applications have been published since 2001. 2026 runs to 8 Oct.
Recent patents
- Method and device for dry treatment of metal surfaces by means of electrically active solid particles24 Feb 2026US 12,558,754 B2Drylyte, S.L.
- Methods for electropolishing and coating aluminum on air and/or moisture sensitive substrates29 Oct 2024US 12,129,551 B2Consolidated Nuclear Security, LLC
- Method to apply color coatings on alloys25 Jun 2024US 12,018,396 B2Cirrus Materials Science Ltd
- Method of electropolishing14 May 2024US 11,982,012 B2ROLLS-ROYCE plc
- Electropolishing method16 Jan 2024US 11,873,572 B23Dm Biomedical Pty Ltd
- Method and device for dry treatment of metal surfaces by means of electrically active solid particles25 Jun 2026US 2026/0175343 A1Drylyte, S.L.
- Systems and methods for affecting surfaces of electrically conductive materials13 Mar 2025US 2025/0084556 A1MetCon Technologies, LLC
- Internal surface electrochemical treatment electrode13 Feb 2025US 2025/0051956 A13Dm Biomedical Pty Ltd
- Surface preparation for electrolytic inorganic finishes16 Jan 2025US 2025/0019856 A1The Boeing Company
- Electrode assembly and electrochemical machining method1 Aug 2024US 2024/0253141 A1Cummins Inc.
Most cited
By later US patents
- Method for producing an aluminum support for a lithographic printing plate39US 6,143,158 AFuji Photo Film Co., Ltd. · 2000
- Electrolytic aluminum polishing processes21US 6,579,439 B1Southern Industrial Chemicals, Inc. · 2003
- Method for desmutting aluminum alloys having a highly reflective surface20US 5,417,819 AAluminum Company of America · 1995
- Method for desmutting aluminum alloys having a highly-reflective surface15US 5,538,600 AAluminum Company of America · 1996
- Two-stage process for electrolytically polishing metal surfaces to obtain improved optical properties and resulting products15US 5,837,117 ASatma · 1998