F23H
Grates
Official title: GRATES (inlets for fluidisation air for fluidised bed combustion apparatus F23C10/20); CLEANING OR RAKING GRATES
F23H (Grates) appears on 301 US grants and 183 published applications in this corpus.
Search patents in F23H- Granted patents
- 301
- Published applications
- 183
- Assignees
- 185
- Inventors
- 505
- Latest grant
- 25 Aug 2026
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1976 | 6 | 0 |
| 1977 | 6 | 0 |
| 1978 | 5 | 0 |
| 1979 | 2 | 0 |
| 1980 | 7 | 0 |
| 1981 | 15 | 0 |
| 1982 | 8 | 0 |
| 1983 | 10 | 0 |
| 1984 | 17 | 0 |
| 1985 | 8 | 0 |
| 1986 | 8 | 0 |
| 1987 | 9 | 0 |
| 1988 | 5 | 0 |
| 1989 | 2 | 0 |
| 1990 | 4 | 0 |
| 1991 | 7 | 0 |
| 1992 | 6 | 0 |
| 1993 | 10 | 0 |
| 1994 | 2 | 0 |
| 1995 | 6 | 0 |
| 1996 | 6 | 0 |
| 1997 | 6 | 0 |
| 1998 | 4 | 0 |
| 1999 | 7 | 0 |
| 2000 | 4 | 0 |
| 2001 | 9 | 3 |
| 2002 | 9 | 4 |
| 2003 | 4 | 5 |
| 2004 | 2 | 5 |
| 2005 | 3 | 8 |
| 2006 | 5 | 5 |
| 2007 | 2 | 8 |
| 2008 | 4 | 7 |
| 2009 | 3 | 9 |
| 2010 | 3 | 5 |
| 2011 | 4 | 7 |
| 2012 | 3 | 11 |
| 2013 | 6 | 18 |
| 2014 | 3 | 8 |
| 2015 | 10 | 10 |
| 2016 | 2 | 5 |
| 2017 | 7 | 6 |
| 2018 | 9 | 5 |
| 2019 | 3 | 8 |
| 2020 | 6 | 3 |
| 2021 | 7 | 5 |
| 2022 | 3 | 11 |
| 2023 | 8 | 14 |
| 2024 | 6 | 5 |
| 2025 | 6 | 6 |
| 2026 | 4 | 2 |
By publication year. Applications have been published since 2001. 2026 runs to 8 Oct.
Main groups
Granted patents with any code in the group
- F23H 17/00Details of grates114
- F23H 7/00Inclined or stepped grates85
- F23H 3/00Grates with hollow bars68
- F23H 2900/00Special features of combustion gratesIndexing code53
- F23H 13/00Grates not covered by any of groups f23h1/00-f23h11/0043
- F23H 1/00Grates with solid bars42
- F23H 15/00Cleaning arrangements for grates32
- F23H 9/00Revolving-grates26
Recent patents
- Combustible fuel burning stove with pellet adapter25 Aug 2026US 12,716,581 B2Solo Brands, LLC
- Water-cooled grate block for an incinerator9 Jun 2026US 12,650,224 B2Kanadevia Inova AG
- Plate-formed grate element for a movable grate of a furnace31 Mar 2026US 12,590,700 B2Kanadevia Inova Denmark A/S
- Combustion system for solid biomass fuel13 Jan 2026US 12,523,372 B2Colorado State University Research Foundation
- Non-gas fire pit16 Dec 2025US 12,498,115 B2Lamplight Farms Incorporated
- Solid Fuel Combustion Apparatus and Method18 Jun 2026US 2026/0168667 A1Air Products and Chemicals, Inc.
- Grate line bordering element for a combustion grate8 Jan 2026US 2026/0009534 A1Kanadevia Inova AG
- Fixed bed gasifier with rollers12 Jun 2025US 2025/0186958 A1
- Fire pit with fire grate22 May 2025US 2025/0164111 A1Solo Brands, LLC
- Grate bar and use of a grate bar10 Apr 2025US 2025/0116399 A1
Most cited
By later US patents
- Systems and methods for state-less authentication179US 7,020,645 B2eOriginal, Inc. · 2006
- Pressurized combustion and heat transfer process and apparatus58US 6,651,645 B12003
- Systems and methods for state-less authentication49US 7,657,531 B22010
- Incinerating method and apparatus having selective, controlled movement of materials during combustion34US 4,170,183 AEnergy Generation, Inc. · 1979
- Pellet fuel burner for heating and drying systems29US 5,893,358 APyro Industries, Inc. · 1999