C21D 9/567
With heating in fluidised beds
Official title: with heating in fluidised beds
C21D9/567 (With heating in fluidised beds) appears on 9 US grants and 4 published applications in this corpus.
Search patents in C21D- Granted patents
- 9
- Published applications
- 4
- Assignees
- 9
- Inventors
- 28
- Latest grant
- 1 Feb 2022
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1977 | 1 | 0 |
| 1978 | 0 | 0 |
| 1979 | 0 | 0 |
| 1980 | 0 | 0 |
| 1981 | 0 | 0 |
| 1982 | 0 | 0 |
| 1983 | 0 | 0 |
| 1984 | 0 | 0 |
| 1985 | 0 | 0 |
| 1986 | 0 | 0 |
| 1987 | 0 | 0 |
| 1988 | 1 | 0 |
| 1989 | 1 | 0 |
| 1990 | 0 | 0 |
| 1991 | 0 | 0 |
| 1992 | 1 | 0 |
| 1993 | 0 | 0 |
| 1994 | 0 | 0 |
| 1995 | 0 | 0 |
| 1996 | 0 | 0 |
| 1997 | 0 | 0 |
| 1998 | 0 | 0 |
| 1999 | 0 | 0 |
| 2000 | 1 | 0 |
| 2001 | 1 | 0 |
| 2002 | 2 | 1 |
| 2003 | 0 | 0 |
| 2004 | 0 | 0 |
| 2005 | 0 | 0 |
| 2006 | 0 | 0 |
| 2007 | 0 | 0 |
| 2008 | 0 | 0 |
| 2009 | 0 | 0 |
| 2010 | 0 | 0 |
| 2011 | 0 | 0 |
| 2012 | 0 | 0 |
| 2013 | 0 | 0 |
| 2014 | 0 | 0 |
| 2015 | 0 | 0 |
| 2016 | 0 | 0 |
| 2017 | 0 | 0 |
| 2018 | 0 | 0 |
| 2019 | 0 | 1 |
| 2020 | 0 | 1 |
| 2021 | 0 | 0 |
| 2022 | 1 | 0 |
| 2023 | 0 | 0 |
| 2024 | 0 | 0 |
| 2025 | 0 | 1 |
By publication year. Applications have been published since 2001.
Recent patents
- Bed medium for fluidized bed1 Feb 2022US 11,236,904 B2Itochu Ceratech Corporation
- Method for producing fine wire17 Dec 2002US 6,494,973 B2Graf + Cie AG
- Method and apparatus for producing fine wire9 Jul 2002US 6,416,707 B1Graf + Cie AG
- Process for continuous heating and cleaning of wire and strip products in a stratified fluidized bed7 Aug 2001US 6,270,597 B1Praxair Technology, Inc.
- Fluidized-bed heat-treatment process and apparatus for use in a manufacturing line28 Mar 2000US 6,042,369 ATechnomics, Inc.
- Heating method of a semi-finished metal products28 Aug 2025US 2025/0271214 A1
- Bed medium for fluidized bed9 Jul 2020US 2020/0217499 A1Itochu Ceratech Corporation
- Thermally treated metallic materials and related methods7 Feb 2019US 2019/0040491 A1Corning Incorporated
- Method and apparatus for producing fine wire7 Mar 2002US 2002/0026968 A1Graf + Cie AG
Most cited
By later US patents
- Fluidized-bed heat-treatment process and apparatus for use in a manufacturing line19US 6,042,369 ATechnomics, Inc. · 2000
- Fluidized bed apparatus7US 4,813,653 AN. V. Bekaert S. A. · 1989
- Fluidized-bed plant4US 4,758,154 ALe Four Industriel Belge · 1988
- Heat treating process for a rod within a fluidized bed3US 4,029,524 AKobe Steel, Ltd. · 1977
- Fluidized bed for quenching steel wire and process thereof3US 5,145,534 ANV Bekaert SA · 1992