C25F 1/02
Pickling
Official title: Pickling; Descaling
C25F1/02 (Pickling) appears on 148 US grants and 122 published applications in this corpus.
Search patents in C25F- Granted patents
- 148
- Published applications
- 122
- Assignees
- 125
- Inventors
- 449
- Latest grant
- 25 Aug 2026
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1977 | 5 | 0 |
| 1978 | 2 | 0 |
| 1979 | 3 | 0 |
| 1980 | 2 | 0 |
| 1981 | 1 | 0 |
| 1982 | 1 | 0 |
| 1983 | 5 | 0 |
| 1984 | 1 | 0 |
| 1985 | 2 | 0 |
| 1986 | 5 | 0 |
| 1987 | 4 | 0 |
| 1988 | 2 | 0 |
| 1989 | 4 | 0 |
| 1990 | 0 | 0 |
| 1991 | 3 | 0 |
| 1992 | 2 | 0 |
| 1993 | 4 | 0 |
| 1994 | 0 | 0 |
| 1995 | 5 | 0 |
| 1996 | 2 | 0 |
| 1997 | 0 | 0 |
| 1998 | 6 | 0 |
| 1999 | 2 | 0 |
| 2000 | 2 | 0 |
| 2001 | 4 | 0 |
| 2002 | 2 | 5 |
| 2003 | 3 | 2 |
| 2004 | 2 | 3 |
| 2005 | 1 | 3 |
| 2006 | 4 | 7 |
| 2007 | 1 | 3 |
| 2008 | 0 | 1 |
| 2009 | 0 | 2 |
| 2010 | 2 | 3 |
| 2011 | 0 | 7 |
| 2012 | 6 | 2 |
| 2013 | 2 | 7 |
| 2014 | 3 | 2 |
| 2015 | 1 | 8 |
| 2016 | 6 | 10 |
| 2017 | 5 | 4 |
| 2018 | 8 | 2 |
| 2019 | 5 | 8 |
| 2020 | 3 | 8 |
| 2021 | 4 | 10 |
| 2022 | 6 | 12 |
| 2023 | 3 | 7 |
| 2024 | 5 | 4 |
| 2025 | 6 | 2 |
| 2026 | 3 | 0 |
By publication year. Applications have been published since 2001. 2026 runs to 8 Oct.
Subgroups
Granted patents
Recent patents
- Stainless steel for separation plate of polymer electrolyte membrane fuel cell having improved hydrophilic property and corrosion resistance, and manufacturing method therefor25 Aug 2026US 12,719,063 B2Posco
- Ferritic stainless steel sheet for current collectors for sulfide-based solid-state batteries, and method for manufacturing same16 Jun 2026US 12,658,454 B2Jfe Steel Corporation
- Ferritic stainless steel and method for manufacturing same12 May 2026US 12,624,433 B2Nippon Steel Stainless Steel Corporation
- Method of decorating PVD coated surfaces and decorated surfaces obtained15 Jul 2025US 12,359,335 B2
- Electrolyte for electropolishing titanium alloys24 Jun 2025US 12,338,541 B2BIOTRONIK SE & Co. KG
- Systems and methods for affecting surfaces of electrically conductive materials13 Mar 2025US 2025/0084556 A1MetCon Technologies, LLC
- Ferritic stainless steel sheet and production method therefor20 Feb 2025US 2025/0059615 A1Jfe Steel Corporation
- Ferritic stainless steel sheet, and method for producing ferritic stainless steel sheet14 Nov 2024US 2024/0376579 A1Nippon Steel Stainless Steel Corporation
- Stainless steel having excellent contact resistance or pemfc separator an method of manufacturing same19 Sep 2024US 2024/0313232 A1Posco
- Steel pipe for oil well20 Jun 2024US 2024/0200176 A1Vallourec Oil and Gas France
Most cited
By later US patents
- Low-rate electrochemical etch of thin film metals and alloys146US 8,524,068 B2Western Digital (Fremont), LLC · 2013
- Cleaning aluminum workpieces58US 5,997,721 AAlcan International Limited · 1999
- Ultrasonic agitator37US 5,409,594 ADynamotive Corporation · 1995
- Method for chemical removal of oxide layers from objects of metal22US 4,525,250 ALudwig Fahrmbacher-Lutz · 1985
- Method of descaling metal sheets21US 4,406,761 AKabushiki Kaisha Kobe Seiko Sho · 1983