F16C 2204/66
High carbon steel, i.e. carbon content above 0.8 wt%
Official title: High carbon steel, i.e. carbon content above 0.8 wt%, e.g. through-hardenable steel
F16C2204/66 (High carbon steel, i.e. carbon content above 0.8 wt%) appears on 92 US grants and 108 published applications in this corpus.
Search patents in F16C- Granted patents
- 92
- Published applications
- 108
- Assignees
- 51
- Inventors
- 280
- Latest grant
- 19 May 2026
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1980 | 1 | 0 |
| 1981 | 0 | 0 |
| 1982 | 0 | 0 |
| 1983 | 0 | 0 |
| 1984 | 0 | 0 |
| 1985 | 0 | 0 |
| 1986 | 1 | 0 |
| 1987 | 2 | 0 |
| 1988 | 0 | 0 |
| 1989 | 0 | 0 |
| 1990 | 2 | 0 |
| 1991 | 0 | 0 |
| 1992 | 0 | 0 |
| 1993 | 1 | 0 |
| 1994 | 0 | 0 |
| 1995 | 2 | 0 |
| 1996 | 0 | 0 |
| 1997 | 2 | 0 |
| 1998 | 3 | 0 |
| 1999 | 1 | 0 |
| 2000 | 1 | 0 |
| 2001 | 1 | 1 |
| 2002 | 1 | 1 |
| 2003 | 3 | 1 |
| 2004 | 0 | 1 |
| 2005 | 0 | 1 |
| 2006 | 0 | 2 |
| 2007 | 0 | 0 |
| 2008 | 0 | 0 |
| 2009 | 0 | 0 |
| 2010 | 2 | 3 |
| 2011 | 0 | 3 |
| 2012 | 2 | 3 |
| 2013 | 1 | 6 |
| 2014 | 2 | 9 |
| 2015 | 4 | 7 |
| 2016 | 6 | 13 |
| 2017 | 6 | 7 |
| 2018 | 4 | 3 |
| 2019 | 5 | 7 |
| 2020 | 6 | 10 |
| 2021 | 6 | 12 |
| 2022 | 9 | 5 |
| 2023 | 7 | 5 |
| 2024 | 4 | 5 |
| 2025 | 4 | 2 |
| 2026 | 3 | 1 |
By publication year. Applications have been published since 2001. 2026 runs to 8 Oct.
Recent patents
- Rolling bearing ring and manufacturing method therefor19 May 2026US 12,631,217 B2Nsk Ltd.
- High-carbon bearing steel and preparation method thereof27 Jan 2026US 12,534,771 B2Central Iron and Steel Research Institute
- Rolling member and rolling bearing13 Jan 2026US 12,523,255 B2Ntn Corporation
- Sliding component and method for manufacturing same9 Dec 2025US 12,492,726 B2Hitachi Construction Machinery Co., Ltd.
- Bearing component having a metallic base body and an alloy-steel coating25 Nov 2025US 12,480,545 B2Aktiebolaget Skf
- Rolling Bearing and Rolling Element Production Method5 Mar 2026US 2026/0063171 A1Nsk Ltd.
- Mechanical component3 Jul 2025US 2025/0215932 A1Ntn Corporation
- Rolling component and rolling bearing16 Jan 2025US 2025/0020160 A1Ntn Corporation
- Rolling bearing ring and manufacturing method therefor17 Oct 2024US 2024/0344563 A1Nsk L Ltd.
- Follower bearing module8 Aug 2024US 2024/0263694 A1Nippon Thompson Co., Ltd.
Most cited
By later US patents
- Method of heat treating high carbon alloy steel parts to develop surface compressive residual stresses40US 4,191,599 AFord Motor Company · 1980
- Rolling bearing29US 6,224,688 B1Nsk Ltd. · 2001
- Rolling bearings26US 5,672,014 ANsk Ltd. · 1997
- Ball-and-roller bearing system25US 4,904,094 ANippon Seiko Kabushiki Kaisha · 1990
- Rolling bearing24US 6,342,109 B12002