F05B 2230/41
Hardening
Official title: Hardening; Annealing
F05B2230/41 (Hardening) appears on 61 US grants and 11 published applications in this corpus.
Search patents in F05B- Granted patents
- 61
- Published applications
- 11
- Assignees
- 22
- Inventors
- 103
- Latest grant
- 1 Sep 2026
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1976 | 3 | 0 |
| 1977 | 0 | 0 |
| 1978 | 0 | 0 |
| 1979 | 0 | 0 |
| 1980 | 0 | 0 |
| 1981 | 2 | 0 |
| 1982 | 0 | 0 |
| 1983 | 0 | 0 |
| 1984 | 1 | 0 |
| 1985 | 0 | 0 |
| 1986 | 1 | 0 |
| 1987 | 0 | 0 |
| 1988 | 0 | 0 |
| 1989 | 1 | 0 |
| 1990 | 2 | 0 |
| 1991 | 1 | 0 |
| 1992 | 5 | 0 |
| 1993 | 5 | 0 |
| 1994 | 1 | 0 |
| 1995 | 1 | 0 |
| 1996 | 3 | 0 |
| 1997 | 5 | 0 |
| 1998 | 5 | 0 |
| 1999 | 4 | 0 |
| 2000 | 6 | 0 |
| 2001 | 6 | 0 |
| 2002 | 0 | 0 |
| 2003 | 0 | 0 |
| 2004 | 0 | 0 |
| 2005 | 0 | 0 |
| 2006 | 0 | 0 |
| 2007 | 0 | 1 |
| 2008 | 0 | 1 |
| 2009 | 1 | 0 |
| 2010 | 0 | 0 |
| 2011 | 0 | 0 |
| 2012 | 1 | 0 |
| 2013 | 0 | 0 |
| 2014 | 0 | 0 |
| 2015 | 0 | 2 |
| 2016 | 0 | 2 |
| 2017 | 0 | 0 |
| 2018 | 2 | 0 |
| 2019 | 2 | 2 |
| 2020 | 0 | 0 |
| 2021 | 1 | 1 |
| 2022 | 0 | 1 |
| 2023 | 1 | 1 |
| 2024 | 0 | 0 |
| 2025 | 0 | 0 |
| 2026 | 1 | 0 |
By publication year. Applications have been published since 2001. 2026 runs to 8 Oct.
Recent patents
- Surface-hardened, rotationally symmetrical workpiece, hardening method and hardening apparatus1 Sep 2026US 12,723,286 B2Walzengiesserei Coswig GmbH
- Surface-hardened, rotationally symmetrical workpiece, hardening method and hardening apparatus11 Jul 2023US 11,697,858 B2Walzengiesserei Coswig GmbH
- Method and apparatus for assembling a wind turbine blade having an internal web27 Jul 2021US 11,072,129 B2Vestas Wind Systems A/S
- Integral ring gear and torque arm for a wind turbine gearbox3 Dec 2019US 10,495,210 B2General Electric Company
- Reinforcing strip for a wind turbine blade28 May 2019US 10,302,065 B2Vestas Wind Systems A/S
- Surface-hardened, rotationally symmetrical workpiece, hardening method and hardening apparatus2 Nov 2023US 2023/0349018 A1Walzengiesserei Coswig GmbH
- Method for manufacturing wind turbine tower structure with embedded reinforcement sensing elements3 Feb 2022US 2022/0034116 A1General Electric Company
- Surface-hardened, rotationally symmetrical workpiece, hardening method and hardening apparatus28 Oct 2021US 2021/0332453 A1Walzengiesserei Coswig GmbH
- Method and apparatus for assembling a wind turbine blade having an internal web28 Nov 2019US 2019/0358911 A1Vestas Wind Systems A/S
- Integral ring gear and torque arm for a wind turbine gearbox9 May 2019US 2019/0136962 A1General Electric Company
Most cited
By later US patents
- Apparatus and method for supercritical fluid extraction or supercritical fluid chromatography73US 5,601,707 AIsco, Inc. · 1997
- Apparatus and method for supercritical fluid extraction or supercritical fluid chromatography55US 5,614,089 AIsco, Inc. · 1997
- Apparatus and method for pumping supercritical fluid and measuring flow thereof55US 5,755,559 AIsco, Inc. · 1998
- Apparatus and method for supercritical fluid extraction44US 5,198,197 AIsco, Inc. · 1993
- Apparatus and method for thermoelectric cooling of an extraction fluid pump43US 5,738,498 AIsco, Inc. · 1998