C23G 1/00
Cleaning or pickling metallic material with solutions or molten salts
Official title: Cleaning or pickling metallic material with solutions or molten salts (with organic solvents C23G5/02)
C23G1/00 (Cleaning or pickling metallic material with solutions or molten salts) appears on 1,986 US grants and 1,555 published applications in this corpus.
Search patents in C23G- Granted patents
- 1,986
- Published applications
- 1,555
- Assignees
- 953
- Inventors
- 4,529
- Latest grant
- 6 Oct 2026
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1976 | 33 | 0 |
| 1977 | 26 | 0 |
| 1978 | 39 | 0 |
| 1979 | 16 | 0 |
| 1980 | 20 | 0 |
| 1981 | 30 | 0 |
| 1982 | 35 | 0 |
| 1983 | 31 | 0 |
| 1984 | 39 | 0 |
| 1985 | 32 | 0 |
| 1986 | 38 | 0 |
| 1987 | 27 | 0 |
| 1988 | 24 | 0 |
| 1989 | 32 | 0 |
| 1990 | 26 | 0 |
| 1991 | 33 | 0 |
| 1992 | 28 | 0 |
| 1993 | 43 | 0 |
| 1994 | 46 | 0 |
| 1995 | 48 | 0 |
| 1996 | 50 | 0 |
| 1997 | 42 | 0 |
| 1998 | 56 | 0 |
| 1999 | 50 | 0 |
| 2000 | 37 | 0 |
| 2001 | 56 | 17 |
| 2002 | 52 | 50 |
| 2003 | 51 | 58 |
| 2004 | 36 | 62 |
| 2005 | 36 | 68 |
| 2006 | 33 | 59 |
| 2007 | 23 | 49 |
| 2008 | 31 | 52 |
| 2009 | 23 | 56 |
| 2010 | 31 | 48 |
| 2011 | 35 | 44 |
| 2012 | 39 | 45 |
| 2013 | 34 | 57 |
| 2014 | 46 | 46 |
| 2015 | 33 | 58 |
| 2016 | 52 | 65 |
| 2017 | 34 | 71 |
| 2018 | 33 | 78 |
| 2019 | 48 | 66 |
| 2020 | 52 | 80 |
| 2021 | 51 | 62 |
| 2022 | 66 | 94 |
| 2023 | 42 | 93 |
| 2024 | 58 | 73 |
| 2025 | 66 | 58 |
| 2026 | 44 | 46 |
By publication year. Applications have been published since 2001. 2026 runs to 8 Oct.
Subgroups
Granted patents
- C23G 1/02Cleaning or pickling metallic material with solutions or molten salts: with acid1,129
- C23G 1/14Cleaning or pickling metallic material with solutions or molten salts: with alkaline523
- C23G 1/36Regeneration of waste pickling liquors227
- C23G 1/24Cleaning or pickling metallic material with solutions or molten salts: with neutral200
- C23G 1/28Cleaning or pickling metallic material with solutions or molten salts: with molten32
Recent patents
- Steel sheet with excellent phosphatability and manufacturing method therefor6 Oct 2026US 12,753,458 B2Posco
- Method for surface treatment by selective removal of a bonding primer on a titanium or titanium alloy substrate6 Oct 2026US 12,753,483 B2Safran Aircraft Engines
- Solvent free copper extraction18 Aug 2026US 12,709,784 B2GreenSource Fabrication LLC
- Stainless steel having excellent surface electrical conductivity for fuel cell separator and manufacturing method therefor4 Aug 2026US 12,700,597 B2Posco
- Steel sheet with excellent surface quality, and manufacturing method therefor14 Jul 2026US 12,680,142 B2Posco
- Process for Chemically Cleaning Lithium Carbonate Scale from Surfaces of Equipment24 Sep 2026US 2026/0284721 A1Veolia Water Technologies, Inc.
- Ultra-high-strength hot-rolled steel sheet, steel pipe, member, and manufacturing methods therefor17 Sep 2026US 2026/0275439 A1Posco
- High-strength steel sheet and manufacturing method therefor27 Aug 2026US 2026/0250811 A1Jfe Steel Corporation
- High-strength steel sheet and method for manufacturing same27 Aug 2026US 2026/0250812 A1Jfe Steel Corporation
- Steel sheet, member, and part, and methods of producing same27 Aug 2026US 2026/0250813 A1Jfe Steel Corporation
Most cited
By later US patents
- Thickened acidic aqueous compositions using cross-linked dialkylaminoacrylic microparticles202US 5,100,660 AAllied Colloids Limited · 1992
- Cleaning compositions for removing etching residue and method of using150US 5,334,332 AEKC Technology, Inc. · 1994
- Post clean treatment composition comprising an organic acid and hydroxylamine137US 5,981,454 AEKC Technology, Inc. · 1999
- Implant surface preparation127US 5,876,453 AImplant Innovations, Inc. · 1999
- Methods and apparatus for cleaning deposition chamber parts using selective spray etch116US 8,691,023 B2Quantum Global Technologies, LLC · 2014