C23C 8/46
Of ferrous surfaces
Official title: of ferrous surfaces
C23C8/46 (Of ferrous surfaces) appears on 21 US grants and 20 published applications in this corpus.
Search patents in C23C- Granted patents
- 21
- Published applications
- 20
- Assignees
- 19
- Inventors
- 53
- Latest grant
- 26 Nov 2024
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1979 | 1 | 0 |
| 1980 | 0 | 0 |
| 1981 | 1 | 0 |
| 1982 | 0 | 0 |
| 1983 | 0 | 0 |
| 1984 | 1 | 0 |
| 1985 | 0 | 0 |
| 1986 | 1 | 0 |
| 1987 | 0 | 0 |
| 1988 | 0 | 0 |
| 1989 | 0 | 0 |
| 1990 | 0 | 0 |
| 1991 | 0 | 0 |
| 1992 | 0 | 0 |
| 1993 | 1 | 0 |
| 1994 | 0 | 0 |
| 1995 | 0 | 0 |
| 1996 | 0 | 0 |
| 1997 | 0 | 0 |
| 1998 | 1 | 0 |
| 1999 | 0 | 0 |
| 2000 | 0 | 0 |
| 2001 | 0 | 0 |
| 2002 | 0 | 0 |
| 2003 | 0 | 0 |
| 2004 | 0 | 0 |
| 2005 | 0 | 0 |
| 2006 | 0 | 0 |
| 2007 | 0 | 0 |
| 2008 | 0 | 1 |
| 2009 | 0 | 0 |
| 2010 | 1 | 4 |
| 2011 | 2 | 1 |
| 2012 | 1 | 0 |
| 2013 | 2 | 0 |
| 2014 | 1 | 2 |
| 2015 | 0 | 2 |
| 2016 | 1 | 1 |
| 2017 | 2 | 3 |
| 2018 | 0 | 1 |
| 2019 | 1 | 0 |
| 2020 | 0 | 1 |
| 2021 | 1 | 2 |
| 2022 | 1 | 0 |
| 2023 | 1 | 1 |
| 2024 | 1 | 0 |
| 2025 | 0 | 0 |
| 2026 | 0 | 1 |
By publication year. Applications have been published since 2001. 2026 runs to 8 Oct.
Recent patents
- Precipitation strengthened carburizable and nitridable steel alloys26 Nov 2024US 12,152,295 B2QuesTek Innovations LLC
- Method for carburizing steel member, steel component, and carburizing agent22 Aug 2023US 11,732,342 B2Nsk Ltd.
- Method for producing surface-hardened material17 May 2022US 11,332,818 B2Nihon Parkerizing Co., Ltd.
- Method for manufacturing a complex-formed component7 Dec 2021US 11,192,165 B2Outokumpu Oyj
- Method for producing hollow stabilizer17 Sep 2019US 10,415,110 B2NHK Spring Co., Ltd.
- Ceramic coating13 Aug 2026US 2026/0234782 A1
- Method for carburizing steel member, steel component, and carburizing agent20 Jul 2023US 2023/0227958 A1Nsk Ltd.
- Precipitation strengthened carburizable and nitridable steel alloys19 Aug 2021US 2021/0254202 A1QuesTek Innovations LLC
- Method for producing surface-hardened material15 Jul 2021US 2021/0214833 A1Nihon Parkerizing Co., Ltd.
- Method for Manufacturing a Complex-Formed Component27 Feb 2020US 2020/0061690 A1Outokumpu Oyj
Most cited
By later US patents
- Non-cyanide salt bath and process for carburization of ferrous metals and alloys11US 4,591,397 AHeatbath Corporation · 1986
- Carburization of metal articles9US 7,794,551 B1Keystone Investment Corporation · 2010
- Process for case hardening steel8US 4,268,323 AKolene Corporation · 1981
- Carburized ballistic alloy7US 8,529,708 B22013
- Method for producing hollow stabilizer5US 10,415,110 B2NHK Spring Co., Ltd. · 2019