F23B 1/36
Shaft-type
Official title: {shaft-type}
F23B1/36 (Shaft-type) appears on 53 US grants and 26 published applications in this corpus.
Search patents in F23B- Granted patents
- 53
- Published applications
- 26
- Assignees
- 21
- Inventors
- 67
- Latest grant
- 27 Jan 2026
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1977 | 1 | 0 |
| 1978 | 1 | 0 |
| 1979 | 0 | 0 |
| 1980 | 0 | 0 |
| 1981 | 2 | 0 |
| 1982 | 1 | 0 |
| 1983 | 6 | 0 |
| 1984 | 5 | 0 |
| 1985 | 3 | 0 |
| 1986 | 6 | 0 |
| 1987 | 3 | 0 |
| 1988 | 2 | 0 |
| 1989 | 1 | 0 |
| 1990 | 0 | 0 |
| 1991 | 0 | 0 |
| 1992 | 1 | 0 |
| 1993 | 0 | 0 |
| 1994 | 0 | 0 |
| 1995 | 0 | 0 |
| 1996 | 1 | 0 |
| 1997 | 0 | 0 |
| 1998 | 0 | 0 |
| 1999 | 0 | 0 |
| 2000 | 0 | 0 |
| 2001 | 0 | 1 |
| 2002 | 2 | 0 |
| 2003 | 1 | 0 |
| 2004 | 0 | 1 |
| 2005 | 0 | 0 |
| 2006 | 0 | 0 |
| 2007 | 0 | 0 |
| 2008 | 0 | 0 |
| 2009 | 0 | 1 |
| 2010 | 0 | 1 |
| 2011 | 0 | 0 |
| 2012 | 0 | 0 |
| 2013 | 0 | 0 |
| 2014 | 0 | 0 |
| 2015 | 0 | 0 |
| 2016 | 1 | 2 |
| 2017 | 0 | 0 |
| 2018 | 0 | 1 |
| 2019 | 0 | 1 |
| 2020 | 0 | 12 |
| 2021 | 2 | 1 |
| 2022 | 6 | 0 |
| 2023 | 1 | 2 |
| 2024 | 3 | 2 |
| 2025 | 3 | 1 |
| 2026 | 1 | 0 |
By publication year. Applications have been published since 2001. 2026 runs to 8 Oct.
Recent patents
- Pellet grills27 Jan 2026US 12,535,219 B2
- Burn control apparatus for solid fuel18 Nov 2025US 12,474,045 B2Zippo Manufacturing Company
- Enriched air stove5 Aug 2025US 12,379,105 B2
- Particle heating landscape furnace29 Jul 2025US 12,372,236 B2Haohong Electric Technology (Hubei) Co., Ltd.
- Pellet grills12 Nov 2024US 12,140,314 B2Weber-Stephen Products LLC
- Combustion chamber for pellet grills2 Jan 2025US 2025/0003595 A1
- Burn control apparatus for solid fuel23 May 2024US 2024/0167677 A1Zippo Manufacturing Company
- Pellet grills1 Feb 2024US 2024/0035665 A1Weber-Stephen Products LLC
- Pellet grills9 Nov 2023US 2023/0358408 A1Weber-Stephen Products LLC
- Particle heating landscape furnace3 Aug 2023US 2023/0243501 A1Haohong Electric Technology (Hubei) Co., Ltd.
Most cited
By later US patents
- Pressurized combustion and heat transfer process and apparatus58US 6,651,645 B12003
- Solid fuel burner for a heating apparatus50US 6,336,449 B12002
- Combustible particulate fuel heater33US 4,565,184 A1986
- Sawdust and wood chip burner25US 4,366,802 A1983
- Pellet grills21US 11,181,277 B2Weber-Stephen Products LLC · 2021