F27D 17/12
Using heat storage
Official title: using heat storage
F27D17/12 (Using heat storage) appears on 89 US grants and 90 published applications in this corpus.
Search patents in F27D- Granted patents
- 89
- Published applications
- 90
- Assignees
- 81
- Inventors
- 225
- Latest grant
- 8 Sep 2026
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1982 | 1 | 0 |
| 1983 | 0 | 0 |
| 1984 | 2 | 0 |
| 1985 | 2 | 0 |
| 1986 | 1 | 0 |
| 1987 | 2 | 0 |
| 1988 | 0 | 0 |
| 1989 | 2 | 0 |
| 1990 | 2 | 0 |
| 1991 | 1 | 0 |
| 1992 | 2 | 0 |
| 1993 | 0 | 0 |
| 1994 | 1 | 0 |
| 1995 | 0 | 0 |
| 1996 | 0 | 0 |
| 1997 | 0 | 0 |
| 1998 | 0 | 0 |
| 1999 | 4 | 0 |
| 2000 | 3 | 0 |
| 2001 | 4 | 1 |
| 2002 | 0 | 3 |
| 2003 | 3 | 1 |
| 2004 | 3 | 3 |
| 2005 | 3 | 1 |
| 2006 | 0 | 0 |
| 2007 | 0 | 0 |
| 2008 | 1 | 0 |
| 2009 | 0 | 0 |
| 2010 | 0 | 2 |
| 2011 | 0 | 2 |
| 2012 | 0 | 2 |
| 2013 | 0 | 9 |
| 2014 | 1 | 12 |
| 2015 | 4 | 6 |
| 2016 | 5 | 7 |
| 2017 | 9 | 6 |
| 2018 | 5 | 4 |
| 2019 | 3 | 4 |
| 2020 | 7 | 4 |
| 2021 | 1 | 2 |
| 2022 | 4 | 6 |
| 2023 | 4 | 3 |
| 2024 | 3 | 4 |
| 2025 | 3 | 4 |
| 2026 | 3 | 4 |
By publication year. Applications have been published since 2001. 2026 runs to 8 Oct.
Subgroups
Granted patents
Recent patents
- Apparatus and process for production of burnt lime or dolomite8 Sep 2026US 12,729,156 B2Fels-Werke GmbH
- Fuel blending in thermochemical heat exchange methods21 Jul 2026US 12,687,341 B2Praxair Technology, Inc.
- Method for operating a blast furnace plant23 Jun 2026US 12,663,212 B2Paul Wurth S. A.
- Total heat energy recovery system for furnace-process phosphoric acid26 Aug 2025US 12,398,039 B2Kunming University of Science and Technology
- Method for operating a fired furnace and arrangement comprising such a furnace17 Jun 2025US 12,330,979 B2Linde Aktiengesellschaft
- Systems and methods for direct reduction of iron ore24 Sep 2026US 2026/0287255 A1Uchicago Argonne, LLC
- Co2-free production of artificial pozzolans, in particular from clay10 Sep 2026US 2026/0265126 A1thyssenkrupp AG
- Kiln and method for burning carbonate rock6 Aug 2026US 2026/0225953 A1Maerz Ofenbau AG
- Method for heating a furnace29 Jan 2026US 2026/0029198 A1
- High-speed jet and radiation combined heating device and rapid heating method thereof25 Dec 2025US 2025/0388991 A1Baoshan Iron & Steel Co., Ltd.
Most cited
By later US patents
- Porous body combustor/regenerator45US 4,850,862 AConsolidated Natural Gas Service Company, Inc. · 1989
- Heat regenerative oxidizer and method of operation45US 6,261,093 B1Monsanto Company · 2001
- Pollution abatement reactor system having nonprismatic structured media35US 6,322,356 B1Durr Environmental, Inc. · 2001
- Variable temperature waste heat recovery system19US 4,628,869 AUnited States Steel Corporation · 1986
- Fuel reformer combustion process18US 6,210,157 B1Praxair Technology, Inc. · 2001