F27B 19/00
Combinations of different kinds of furnaces that are not all covered by
Official title: Combinations of different kinds of furnaces that are not all covered by any single one of main groups F27B1/00 - F27B17/00
F27B19/00 (Combinations of different kinds of furnaces that are not all covered by) appears on 129 US grants and 96 published applications in this corpus.
Search patents in F27B- Granted patents
- 129
- Published applications
- 96
- Assignees
- 120
- Inventors
- 385
- Latest grant
- 17 Mar 2026
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1976 | 5 | 0 |
| 1977 | 6 | 0 |
| 1978 | 1 | 0 |
| 1979 | 6 | 0 |
| 1980 | 3 | 0 |
| 1981 | 1 | 0 |
| 1982 | 2 | 0 |
| 1983 | 2 | 0 |
| 1984 | 2 | 0 |
| 1985 | 4 | 0 |
| 1986 | 3 | 0 |
| 1987 | 1 | 0 |
| 1988 | 4 | 0 |
| 1989 | 2 | 0 |
| 1990 | 0 | 0 |
| 1991 | 5 | 0 |
| 1992 | 1 | 0 |
| 1993 | 2 | 0 |
| 1994 | 2 | 0 |
| 1995 | 0 | 0 |
| 1996 | 0 | 0 |
| 1997 | 1 | 0 |
| 1998 | 1 | 0 |
| 1999 | 1 | 0 |
| 2000 | 0 | 0 |
| 2001 | 5 | 1 |
| 2002 | 0 | 2 |
| 2003 | 4 | 1 |
| 2004 | 0 | 0 |
| 2005 | 1 | 0 |
| 2006 | 0 | 2 |
| 2007 | 0 | 3 |
| 2008 | 0 | 5 |
| 2009 | 1 | 2 |
| 2010 | 5 | 6 |
| 2011 | 4 | 3 |
| 2012 | 2 | 6 |
| 2013 | 1 | 10 |
| 2014 | 5 | 9 |
| 2015 | 6 | 14 |
| 2016 | 11 | 3 |
| 2017 | 6 | 5 |
| 2018 | 9 | 4 |
| 2019 | 0 | 1 |
| 2020 | 3 | 8 |
| 2021 | 1 | 1 |
| 2022 | 3 | 2 |
| 2023 | 4 | 3 |
| 2024 | 1 | 2 |
| 2025 | 1 | 1 |
| 2026 | 1 | 2 |
By publication year. Applications have been published since 2001. 2026 runs to 8 Oct.
Subgroups
Granted patents
Recent patents
- Method of producing cement clinker and a second calcined material17 Mar 2026US 12,577,156 B2Amrize Technology Switzerland LLC
- Device and method by which the process control, in particular temperature control, of a metal product passed through along a single running-through line is flexibly influenced by means of at least two adjacent segments25 Feb 2025US 12,235,046 B2SMS group GmbH
- Fixture for additive manufacturing and heat treatment23 Jul 2024US 12,042,867 B2Airbus Operations GmbH
- Oxyfuel clinker production without recirculation of the preheater exhaust gases21 Nov 2023US 11,820,718 B2Thyssenkrupp Industrial Solutions AG
- Conveying a material to be conveyed16 May 2023US 11,650,013 B2Primetals Technologies Austria GmbH
- Device for colour optimisation of activated clays16 Jul 2026US 2026/0202131 A1thyssenkrupp AG
- Calcination vessel for manufacturing electrode active material26 Mar 2026US 2026/0085890 A1L&F Co., Ltd.
- Electric furnace20 Mar 2025US 2025/0093100 A1Hyundai Steel Company
- Method for operating a metallurgical plant for producing iron products31 Oct 2024US 2024/0360526 A1Paul Wurth S. A.
- Method for producing steel in an integrated metallurgical plant15 Aug 2024US 2024/0271232 A1ThyssenKrupp Steel Europe AG
Most cited
By later US patents
- Process for melting metal68US 3,935,003 AKaiser Aluminum & Chemical Corporation · 1976
- Asphalt recycle plant and method28US 4,477,250 AMechtron International Corporation · 1984
- Energy conserving limestone calcining system25US 4,748,010 AChemstar, Inc. · 1988
- Process for combination metal reduction and distillation24US 4,556,420 AWestinghouse Electric Corp. · 1985
- Furnace system for and method of melting and preheating metal20US 4,021,192 AReynolds Metals Company · 1977