C23C 22/62
Treatment of iron or alloys based thereon
C23C22/62 (Treatment of iron or alloys based thereon) appears on 85 US grants and 103 published applications in this corpus.
Search patents in C23C- Granted patents
- 85
- Published applications
- 103
- Assignees
- 87
- Inventors
- 299
- Latest grant
- 31 Mar 2026
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1977 | 1 | 0 |
| 1978 | 5 | 0 |
| 1979 | 1 | 0 |
| 1980 | 0 | 0 |
| 1981 | 1 | 0 |
| 1982 | 1 | 0 |
| 1983 | 0 | 0 |
| 1984 | 1 | 0 |
| 1985 | 1 | 0 |
| 1986 | 1 | 0 |
| 1987 | 0 | 0 |
| 1988 | 0 | 0 |
| 1989 | 1 | 0 |
| 1990 | 1 | 0 |
| 1991 | 0 | 0 |
| 1992 | 1 | 0 |
| 1993 | 0 | 0 |
| 1994 | 0 | 0 |
| 1995 | 1 | 0 |
| 1996 | 1 | 0 |
| 1997 | 0 | 0 |
| 1998 | 1 | 0 |
| 1999 | 1 | 0 |
| 2000 | 1 | 0 |
| 2001 | 4 | 0 |
| 2002 | 2 | 2 |
| 2003 | 3 | 6 |
| 2004 | 2 | 4 |
| 2005 | 2 | 2 |
| 2006 | 1 | 2 |
| 2007 | 0 | 0 |
| 2008 | 0 | 2 |
| 2009 | 0 | 2 |
| 2010 | 2 | 1 |
| 2011 | 1 | 3 |
| 2012 | 3 | 1 |
| 2013 | 1 | 5 |
| 2014 | 2 | 3 |
| 2015 | 4 | 3 |
| 2016 | 1 | 13 |
| 2017 | 4 | 7 |
| 2018 | 2 | 8 |
| 2019 | 5 | 7 |
| 2020 | 4 | 7 |
| 2021 | 5 | 5 |
| 2022 | 4 | 5 |
| 2023 | 4 | 6 |
| 2024 | 5 | 2 |
| 2025 | 3 | 4 |
| 2026 | 1 | 3 |
By publication year. Applications have been published since 2001. 2026 runs to 8 Oct.
Recent patents
- Method for producing hardened steel components with a conditioned zinc anti-corrosive layer31 Mar 2026US 12,590,346 B2voestalpine Stahl GmbH
- Methods and compositions for forming magnetite coatings on ferrous metals16 Dec 2025US 12,497,684 B2Birchwood Laboratories, Inc.
- Method for producing hardened steel components with a conditioned zinc alloy anti-corrosive layer1 Jul 2025US 12,344,914 B2voestalpine Stahl GmbH
- Post-plating treatment method for one-step brass-electroplated steel wire29 Apr 2025US 12,286,723 B2Jiangsu Xingda Steel Tyre Cord Co., Ltd.
- Component31 Dec 2024US 12,180,596 B2Aktiebolaget Skf
- Rust Prevention Method For Steel Material30 Jul 2026US 2026/0218387 A1JDC Corporation
- Unique colored resistant to corrosion metal23 Jul 2026US 2026/0209952 A1Novet Group Ltd
- Method for reducing friction in a rolling bearing, in particular in a vehicle wheel hub bearing, and associated rolling bearing5 Feb 2026US 2026/0036170 A1
- Aluminum-plated steel sheet for hot stamping9 Oct 2025US 2025/0312990 A1Nippon Steel Corporation
- Compositions and methods of treating metal surfaces in surface preparation processes25 Sep 2025US 2025/0297371 A1Chemtreat, Inc.
Most cited
By later US patents
- Inorganic conversion coatings for ferrous substrate25US 6,159,552 ARutgers, The State University · 2000
- Absorption surface of solar collector22US 4,097,311 AYazaki Sogyo Kabushiki Kaisha · 1978
- Metal-forming dies21US 4,105,443 AUnited Kingdom Atomic Energy Authority · 1978
- Steel sheets and method of treating steel sheets20US 4,169,916 AToyo Kohan Co.Ltd · 1979
- Corrosion resistant steel components and method of manufacture thereof17US 4,563,223 ALucas Industries Limited · 1986