C21D 1/53
Heating in fluidised beds
C21D1/53 (Heating in fluidised beds) appears on 74 US grants and 30 published applications in this corpus.
Search patents in C21D- Granted patents
- 74
- Published applications
- 30
- Assignees
- 38
- Inventors
- 119
- Latest grant
- 1 Feb 2022
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1976 | 2 | 0 |
| 1977 | 1 | 0 |
| 1978 | 2 | 0 |
| 1979 | 1 | 0 |
| 1980 | 3 | 0 |
| 1981 | 0 | 0 |
| 1982 | 0 | 0 |
| 1983 | 4 | 0 |
| 1984 | 1 | 0 |
| 1985 | 3 | 0 |
| 1986 | 4 | 0 |
| 1987 | 1 | 0 |
| 1988 | 4 | 0 |
| 1989 | 1 | 0 |
| 1990 | 0 | 0 |
| 1991 | 3 | 0 |
| 1992 | 1 | 0 |
| 1993 | 2 | 0 |
| 1994 | 9 | 0 |
| 1995 | 3 | 0 |
| 1996 | 2 | 0 |
| 1997 | 0 | 0 |
| 1998 | 3 | 0 |
| 1999 | 0 | 0 |
| 2000 | 2 | 0 |
| 2001 | 2 | 1 |
| 2002 | 0 | 3 |
| 2003 | 2 | 1 |
| 2004 | 1 | 2 |
| 2005 | 4 | 4 |
| 2006 | 1 | 1 |
| 2007 | 3 | 1 |
| 2008 | 0 | 1 |
| 2009 | 1 | 1 |
| 2010 | 1 | 1 |
| 2011 | 0 | 1 |
| 2012 | 1 | 3 |
| 2013 | 0 | 4 |
| 2014 | 2 | 0 |
| 2015 | 2 | 0 |
| 2016 | 0 | 1 |
| 2017 | 1 | 0 |
| 2018 | 0 | 0 |
| 2019 | 0 | 1 |
| 2020 | 0 | 1 |
| 2021 | 0 | 1 |
| 2022 | 1 | 0 |
| 2023 | 0 | 0 |
| 2024 | 0 | 0 |
| 2025 | 0 | 2 |
By publication year. Applications have been published since 2001.
Recent patents
- Bed medium for fluidized bed1 Feb 2022US 11,236,904 B2Itochu Ceratech Corporation
- High temperature fluidized bed for powder treatment31 Jan 2017US 9,555,474 B2United Technologies Corporation
- Fluidised bed treatment10 Nov 2015US 9,182,174 B2ROLLS-ROYCE plc
- Fluidised bed treatment7 Jul 2015US 9,074,817 B2ROLLS-ROYCE plc
- Heat treatment apparatus and a method of using such apparatus28 Oct 2014US 8,871,042 B2ROLLS-ROYCE plc
- Heating method of a semi-finished metal products28 Aug 2025US 2025/0271214 A1
- Heating method of a metallic product16 Jan 2025US 2025/0019784 A1
- Method of heat transfer and associated device22 Jul 2021US 2021/0222954 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
Most cited
By later US patents
- Surface treatment of metals34US 4,547,228 AProcedyne Corp. · 1985
- Heat treatment of metal castings and in-furnace sand reclamation30US 5,354,038 AConsolidated Engineering Company, Inc. · 1994
- Method for metal treatment using a fluidized bed29US 4,512,821 AProcedyne Corp. · 1985
- Fluidized bed28US 4,392,814 ACan-Eng Holdings, Ltd. · 1983
- Lip-hung retort furnace27US 4,604,055 ACan-Eng Holdings, Ltd. · 1986