F23H 1/02
Grates with solid bars: having provision for air supply or air preheating
Official title: having provision for air supply or air preheating, e.g. air-supply or blast fittings which form a part of the grate structure or serve as supports
F23H1/02 (Grates with solid bars: having provision for air supply or air preheating) appears on 33 US grants and 25 published applications in this corpus.
Search patents in F23H- Granted patents
- 33
- Published applications
- 25
- Assignees
- 20
- Inventors
- 53
- Latest grant
- 13 Jan 2026
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1981 | 2 | 0 |
| 1982 | 0 | 0 |
| 1983 | 3 | 0 |
| 1984 | 2 | 0 |
| 1985 | 0 | 0 |
| 1986 | 1 | 0 |
| 1987 | 1 | 0 |
| 1988 | 0 | 0 |
| 1989 | 0 | 0 |
| 1990 | 1 | 0 |
| 1991 | 1 | 0 |
| 1992 | 0 | 0 |
| 1993 | 1 | 0 |
| 1994 | 0 | 0 |
| 1995 | 1 | 0 |
| 1996 | 0 | 0 |
| 1997 | 1 | 0 |
| 1998 | 0 | 0 |
| 1999 | 1 | 0 |
| 2000 | 2 | 0 |
| 2001 | 1 | 0 |
| 2002 | 2 | 0 |
| 2003 | 2 | 2 |
| 2004 | 0 | 2 |
| 2005 | 1 | 1 |
| 2006 | 1 | 0 |
| 2007 | 1 | 1 |
| 2008 | 0 | 4 |
| 2009 | 0 | 1 |
| 2010 | 0 | 1 |
| 2011 | 1 | 2 |
| 2012 | 0 | 1 |
| 2013 | 2 | 0 |
| 2014 | 0 | 1 |
| 2015 | 0 | 2 |
| 2016 | 0 | 1 |
| 2017 | 0 | 1 |
| 2018 | 1 | 0 |
| 2019 | 0 | 0 |
| 2020 | 0 | 0 |
| 2021 | 0 | 0 |
| 2022 | 0 | 2 |
| 2023 | 2 | 2 |
| 2024 | 1 | 0 |
| 2025 | 0 | 1 |
| 2026 | 1 | 0 |
By publication year. Applications have been published since 2001. 2026 runs to 8 Oct.
Recent patents
- Combustion system for solid biomass fuel13 Jan 2026US 12,523,372 B2Colorado State University Research Foundation
- Grate block for a combustion grate31 Dec 2024US 12,181,149 B2Kanadevia Inova AG
- Grate bar for stepped grate14 Nov 2023US 11,815,265 B2IKN GmbH
- Grate block with rising nose7 Nov 2023US 11,808,450 B2Hitachi Zosen Inova AG
- Pellet boiler with removable grate24 Jul 2018US 10,030,870 B2
- Grate block for a combustion grate20 Feb 2025US 2025/0060099 A1Kanadevia Inova AG
- Grate block with rising nose17 Aug 2023US 2023/0258333 A1Hitachi Zosen Inova AG
- Combustion system for solid biomass fuel2 Mar 2023US 2023/0065497 A1Colorado State University Research Foundation
- Grate block for a combustion grate8 Sep 2022US 2022/0282864 A1Hitachi Zosen Inova AG
- Grate Bar for Stepped Grate11 Aug 2022US 2022/0252261 A1IKN GmbH
Most cited
By later US patents
- Pressurized combustion and heat transfer process and apparatus58US 6,651,645 B12003
- Grates20US 4,389,978 AParkinson Cowan GWB Limited · 1983
- Step type stoker with oscillation mechanism20US 4,563,959 ATakuma Co., Ltd. · 1986
- Incinerator improvements13US 5,209,169 A1993
- Fire grate10US 4,671,190 AElectricite de France (Service National) · 1987