C21D 9/0018
For charging, discharging or manipulation of charge
Official title: {for charging, discharging or manipulation of charge}
C21D9/0018 (For charging, discharging or manipulation of charge) appears on 144 US grants and 129 published applications in this corpus.
Search patents in C21D- Granted patents
- 144
- Published applications
- 129
- Assignees
- 136
- Inventors
- 402
- Latest grant
- 17 Mar 2026
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1976 | 1 | 0 |
| 1977 | 1 | 0 |
| 1978 | 3 | 0 |
| 1979 | 1 | 0 |
| 1980 | 1 | 0 |
| 1981 | 3 | 0 |
| 1982 | 0 | 0 |
| 1983 | 1 | 0 |
| 1984 | 1 | 0 |
| 1985 | 2 | 0 |
| 1986 | 4 | 0 |
| 1987 | 0 | 0 |
| 1988 | 1 | 0 |
| 1989 | 2 | 0 |
| 1990 | 2 | 0 |
| 1991 | 2 | 0 |
| 1992 | 5 | 0 |
| 1993 | 2 | 0 |
| 1994 | 3 | 0 |
| 1995 | 4 | 0 |
| 1996 | 2 | 0 |
| 1997 | 1 | 0 |
| 1998 | 3 | 0 |
| 1999 | 3 | 0 |
| 2000 | 5 | 0 |
| 2001 | 4 | 1 |
| 2002 | 1 | 2 |
| 2003 | 3 | 5 |
| 2004 | 3 | 5 |
| 2005 | 4 | 3 |
| 2006 | 2 | 2 |
| 2007 | 0 | 1 |
| 2008 | 1 | 3 |
| 2009 | 2 | 6 |
| 2010 | 2 | 4 |
| 2011 | 5 | 5 |
| 2012 | 4 | 6 |
| 2013 | 4 | 7 |
| 2014 | 6 | 6 |
| 2015 | 2 | 7 |
| 2016 | 6 | 10 |
| 2017 | 3 | 6 |
| 2018 | 9 | 5 |
| 2019 | 2 | 4 |
| 2020 | 4 | 3 |
| 2021 | 3 | 6 |
| 2022 | 6 | 10 |
| 2023 | 6 | 7 |
| 2024 | 2 | 4 |
| 2025 | 6 | 4 |
| 2026 | 1 | 7 |
By publication year. Applications have been published since 2001. 2026 runs to 8 Oct.
Recent patents
- Method of manufacturing press-formed product, apparatus for transporting heated workpiece, and hot-press manufacturing line17 Mar 2026US 12,576,443 B2Nippon Steel Corporation
- Method of manufacturing press-formed product, and tray and hot-press manufacturing line used for manufacturing press-formed product2 Sep 2025US 12,403,524 B2Nippon Steel Corporation
- Cooling device for heat treatment1 Jul 2025US 12,345,480 B2Dongwoo Hst Co., Ltd.
- Method and apparatus for hardening mold grids using clamp quenching20 May 2025US 12,305,924 B2Columbia Machine, Inc.
- Method for the heat treatment of a metal based on a predicted austenite content to achieve austenite content within a quality window6 May 2025US 12,291,757 B2SMS group GmbH
- Rail and method of producing same20 Aug 2026US 2026/0242910 A1Jfe Steel Corporation
- Method for determining slab length and slab charging position within walking-beam heating furnace13 Aug 2026US 2026/0235361 A1Jfe Steel Corporation
- Quenching apparatus30 Jul 2026US 2026/0218327 A1Aisin Corporation
- Thermally Treating a Metallic Component16 Jul 2026US 2026/0201489 A1
- Thermal treatment device, method and use2 Jul 2026US 2026/0185177 A1SMS group GmbH
Most cited
By later US patents
- Method and apparatus for continuous casting and hot-rolling32US 5,461,770 AHitachi, Ltd. · 1995
- Pusher type furnace for heat-treating charges28US 5,443,383 ALoi Industrieofenanlagen GmbH · 1995
- Apparatus for reheating, storing and conveying cast bars18US 4,289,944 A1981
- Apparatus for treating workpieces in a bed of particles16US 4,154,574 AStone-Platt Fluidfire Limited · 1979
- Method of heat treating metal parts in an integrated continuous and batch furnace system16US 5,143,558 AThermo Process Systems Inc. · 1992