F16C 2223/10
Hardening
Official title: Hardening, e.g. carburizing, carbo-nitriding
F16C2223/10 (Hardening) appears on 153 US grants and 226 published applications in this corpus.
Search patents in F16C- Granted patents
- 153
- Published applications
- 226
- Assignees
- 91
- Inventors
- 506
- Latest grant
- 1 Sep 2026
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1976 | 1 | 0 |
| 1977 | 1 | 0 |
| 1978 | 1 | 0 |
| 1979 | 0 | 0 |
| 1980 | 1 | 0 |
| 1981 | 0 | 0 |
| 1982 | 0 | 0 |
| 1983 | 0 | 0 |
| 1984 | 0 | 0 |
| 1985 | 1 | 0 |
| 1986 | 1 | 0 |
| 1987 | 0 | 0 |
| 1988 | 0 | 0 |
| 1989 | 0 | 0 |
| 1990 | 0 | 0 |
| 1991 | 0 | 0 |
| 1992 | 1 | 0 |
| 1993 | 1 | 0 |
| 1994 | 0 | 0 |
| 1995 | 1 | 0 |
| 1996 | 0 | 0 |
| 1997 | 1 | 0 |
| 1998 | 0 | 0 |
| 1999 | 2 | 0 |
| 2000 | 2 | 0 |
| 2001 | 1 | 0 |
| 2002 | 1 | 0 |
| 2003 | 0 | 0 |
| 2004 | 0 | 2 |
| 2005 | 1 | 3 |
| 2006 | 0 | 1 |
| 2007 | 1 | 2 |
| 2008 | 0 | 1 |
| 2009 | 0 | 6 |
| 2010 | 1 | 6 |
| 2011 | 0 | 1 |
| 2012 | 3 | 5 |
| 2013 | 4 | 15 |
| 2014 | 10 | 8 |
| 2015 | 5 | 1 |
| 2016 | 7 | 16 |
| 2017 | 5 | 23 |
| 2018 | 10 | 13 |
| 2019 | 13 | 13 |
| 2020 | 9 | 16 |
| 2021 | 11 | 21 |
| 2022 | 16 | 21 |
| 2023 | 14 | 11 |
| 2024 | 13 | 15 |
| 2025 | 6 | 9 |
| 2026 | 8 | 17 |
By publication year. Applications have been published since 2001. 2026 runs to 8 Oct.
Subgroups
Granted patents
Recent patents
- Surface-hardened, rotationally symmetrical workpiece, hardening method and hardening apparatus1 Sep 2026US 12,723,286 B2Walzengiesserei Coswig GmbH
- Electric vehicle drive motor bearing assembly25 Aug 2026US 12,716,450 B2JTEKT Bearings North America LLC
- Bearing component25 Aug 2026US 12,716,454 B2Aktiebolaget Skf
- Method of manufacturing mechanical element and mechanical element19 May 2026US 12,629,791 B2Hane Inc.
- Rolling bearing ring and manufacturing method therefor19 May 2026US 12,631,217 B2Nsk Ltd.
- Wheel hub unit with noise reducing features1 Oct 2026US 2026/0296100 A1
- Deep Groove Ball Bearing and Arc-Shaped Roller Assembly1 Oct 2026US 2026/0298288 A1
- One-step carbo-nitro-austempering process for forming steel bearings10 Sep 2026US 2026/0265851 A1GM Global Technology Operations LLC
- Roller hydraulic valve lifter bearing10 Sep 2026US 2026/0266204 A1Roller Bearing Company of America, Inc.
- Follower bearing, follower bearing module, and method of producing inner member of follower bearing3 Sep 2026US 2026/0258836 A1Nippon Thompson Co., Ltd.
Most cited
By later US patents
- Sliding bearing and manufacturing method thereof48US 6,086,257 A2000
- Hardened bearing surface and method of forming same32US 4,618,269 AReed Tool Company · 1986
- Bearing material and plastic bearing28US 5,236,784 AKabushiki Kaisha Sankyo Seiki Seisakusho · 1993
- Journal and pilot bearings with alternating surface areas of wear resistant and anti-galling materials25US 3,984,158 ADresser Industries, Inc. · 1976
- Rolling bearing23US 5,873,956 ANsk Ltd. · 1999