C25D 11/38
Chromatising
C25D11/38 (Chromatising) appears on 185 US grants and 111 published applications in this corpus.
Search patents in C25D- Granted patents
- 185
- Published applications
- 111
- Assignees
- 97
- Inventors
- 453
- Latest grant
- 19 May 2026
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1976 | 3 | 0 |
| 1977 | 2 | 0 |
| 1978 | 3 | 0 |
| 1979 | 4 | 0 |
| 1980 | 1 | 0 |
| 1981 | 2 | 0 |
| 1982 | 0 | 0 |
| 1983 | 3 | 0 |
| 1984 | 9 | 0 |
| 1985 | 15 | 0 |
| 1986 | 9 | 0 |
| 1987 | 6 | 0 |
| 1988 | 5 | 0 |
| 1989 | 8 | 0 |
| 1990 | 8 | 0 |
| 1991 | 8 | 0 |
| 1992 | 2 | 0 |
| 1993 | 4 | 0 |
| 1994 | 3 | 0 |
| 1995 | 2 | 0 |
| 1996 | 0 | 0 |
| 1997 | 1 | 0 |
| 1998 | 1 | 0 |
| 1999 | 2 | 0 |
| 2000 | 3 | 0 |
| 2001 | 4 | 1 |
| 2002 | 1 | 2 |
| 2003 | 3 | 1 |
| 2004 | 1 | 5 |
| 2005 | 2 | 4 |
| 2006 | 2 | 4 |
| 2007 | 1 | 2 |
| 2008 | 1 | 0 |
| 2009 | 1 | 2 |
| 2010 | 1 | 3 |
| 2011 | 0 | 2 |
| 2012 | 0 | 3 |
| 2013 | 3 | 12 |
| 2014 | 1 | 6 |
| 2015 | 7 | 12 |
| 2016 | 4 | 3 |
| 2017 | 7 | 6 |
| 2018 | 4 | 11 |
| 2019 | 3 | 6 |
| 2020 | 9 | 6 |
| 2021 | 8 | 11 |
| 2022 | 9 | 1 |
| 2023 | 3 | 0 |
| 2024 | 1 | 4 |
| 2025 | 4 | 3 |
| 2026 | 1 | 1 |
By publication year. Applications have been published since 2001. 2026 runs to 8 Oct.
Recent patents
- Ferritic stainless steel used for bipolar plates of fuel cells, controlling method of surface roughness, method of forming passivation films, and use19 May 2026US 12,630,909 B2Shandong Industrial Research Institute of Advanced Materials Co., Ltd
- Copper-clad laminate, printed wiring board, semiconductor package and method for producing copper-clad laminate15 Jul 2025US 12,363,826 B2Resonac Corporation
- Ferritic stainless steel having improved corrosion resistance, and manufacturing method therefor11 Mar 2025US 12,247,309 B2Posco
- Surface-treated steel sheet and method of producing the same14 Jan 2025US 12,195,858 B2Jfe Steel Corporation
- Surface-treated steel sheet and method of producing the same14 Jan 2025US 12,195,868 B2Jfe Steel Corporation
- Chromium-plated component and production method for same9 Jul 2026US 2026/0193805 A1Jcu Corporation
- Surface-treated steel sheet and production method therefor23 Oct 2025US 2025/0327206 A1Jfe Steel Corporation
- Steel sheet for cans and method for producing same6 Feb 2025US 2025/0043456 A1Jef Steel Corporation
- Surface preparation for electrolytic inorganic finishes16 Jan 2025US 2025/0019856 A1The Boeing Company
- Ferritic Stainless Steel Used for Bipolar Plates of Fuel Cells, Controlling Method of Surface Roughness, Method of Forming Passivation Films, and Use12 Sep 2024US 2024/0301539 A1Shandong Industrial Research Institute of Advanced Materials Co., Ltd
Most cited
By later US patents
- Corrosion-resistant surface-coated steel sheet121US 5,330,850 ASumitomo Metal Industries, Ltd. · 1994
- Weldable black steel sheet with low-gloss appearance40US 5,387,473 ANKK Corporation · 1995
- Highly corrosion-resistant surface-treated steel plate39US 4,775,600 ANippon Kokan Kabushiki Kaisha · 1988
- Thinly tin coated steel sheets having excellent rust resistance and weldability36US 4,999,258 ANippon Steel Corporation · 1991
- Process for preparation of highly anticorrosive surface-treated steel plate35US 4,659,394 ANippon Kokan Kabushiki Kaisha · 1987