C25F 1/06
Iron or steel
C25F1/06 (Iron or steel) appears on 85 US grants and 65 published applications in this corpus.
Search patents in C25F- Granted patents
- 85
- Published applications
- 65
- Assignees
- 65
- Inventors
- 258
- Latest grant
- 25 Aug 2026
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1977 | 2 | 0 |
| 1978 | 2 | 0 |
| 1979 | 2 | 0 |
| 1980 | 2 | 0 |
| 1981 | 1 | 0 |
| 1982 | 0 | 0 |
| 1983 | 2 | 0 |
| 1984 | 1 | 0 |
| 1985 | 0 | 0 |
| 1986 | 2 | 0 |
| 1987 | 3 | 0 |
| 1988 | 0 | 0 |
| 1989 | 4 | 0 |
| 1990 | 0 | 0 |
| 1991 | 3 | 0 |
| 1992 | 1 | 0 |
| 1993 | 3 | 0 |
| 1994 | 0 | 0 |
| 1995 | 4 | 0 |
| 1996 | 1 | 0 |
| 1997 | 0 | 0 |
| 1998 | 4 | 0 |
| 1999 | 1 | 0 |
| 2000 | 1 | 0 |
| 2001 | 2 | 0 |
| 2002 | 2 | 2 |
| 2003 | 2 | 1 |
| 2004 | 1 | 2 |
| 2005 | 0 | 1 |
| 2006 | 1 | 2 |
| 2007 | 0 | 2 |
| 2008 | 0 | 0 |
| 2009 | 0 | 1 |
| 2010 | 1 | 2 |
| 2011 | 0 | 1 |
| 2012 | 4 | 0 |
| 2013 | 0 | 2 |
| 2014 | 0 | 1 |
| 2015 | 0 | 6 |
| 2016 | 3 | 8 |
| 2017 | 3 | 2 |
| 2018 | 5 | 0 |
| 2019 | 3 | 5 |
| 2020 | 2 | 4 |
| 2021 | 2 | 4 |
| 2022 | 4 | 11 |
| 2023 | 2 | 4 |
| 2024 | 3 | 3 |
| 2025 | 3 | 1 |
| 2026 | 3 | 0 |
By publication year. Applications have been published since 2001. 2026 runs to 8 Oct.
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
- Preparation method for iron-based alloy powder EBSD test sample17 Jun 2025US 12,332,155 B2Central South University
- Method for manufacturing of stainless steel strips10 Jun 2025US 12,325,888 B2Outokumpu Oyj
- 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
- Stainless steel for fuel cell separator with excellent surface hydrophilicity and electrical conductivity, and manufacturing method thereof28 Dec 2023US 2023/0420697 A1Posco
Most cited
By later US patents
- Process for pickling steel-based metallic materials at a high speed18US 5,202,002 ANippon Steel Corporation · 1993
- Method for coloring a stainless steel14US 4,026,737 ANippon Steel Corporation · 1977
- Method for electrolytic removal of scale from band steel10US 4,129,485 AAgency of Industrial Science and Technology · 1978
- Method of controlling oxide scale formation and descaling thereof from metal articles10US 4,415,415 AAllegheny Ludlum Steel Corporation · 1983
- Process and plant for pickling materials made of steel, in particular stainless steel9US 5,800,694 AAndritz-Patentverwaltungs-Gesellschaft m.b.H. · 1998