F23K 3/16
Over-feed arrangements
F23K3/16 (Over-feed arrangements) appears on 81 US grants and 32 published applications in this corpus.
Search patents in F23K- Granted patents
- 81
- Published applications
- 32
- Assignees
- 50
- Inventors
- 151
- Latest grant
- 19 May 2026
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1976 | 1 | 0 |
| 1977 | 1 | 0 |
| 1978 | 1 | 0 |
| 1979 | 2 | 0 |
| 1980 | 0 | 0 |
| 1981 | 2 | 0 |
| 1982 | 4 | 0 |
| 1983 | 3 | 0 |
| 1984 | 9 | 0 |
| 1985 | 10 | 0 |
| 1986 | 3 | 0 |
| 1987 | 4 | 0 |
| 1988 | 0 | 0 |
| 1989 | 0 | 0 |
| 1990 | 2 | 0 |
| 1991 | 2 | 0 |
| 1992 | 3 | 0 |
| 1993 | 2 | 0 |
| 1994 | 4 | 0 |
| 1995 | 2 | 0 |
| 1996 | 1 | 0 |
| 1997 | 0 | 0 |
| 1998 | 2 | 0 |
| 1999 | 1 | 0 |
| 2000 | 0 | 0 |
| 2001 | 0 | 0 |
| 2002 | 0 | 0 |
| 2003 | 1 | 1 |
| 2004 | 0 | 0 |
| 2005 | 0 | 0 |
| 2006 | 0 | 1 |
| 2007 | 0 | 3 |
| 2008 | 0 | 1 |
| 2009 | 0 | 0 |
| 2010 | 1 | 2 |
| 2011 | 0 | 3 |
| 2012 | 0 | 0 |
| 2013 | 2 | 2 |
| 2014 | 2 | 2 |
| 2015 | 2 | 1 |
| 2016 | 1 | 1 |
| 2017 | 2 | 1 |
| 2018 | 2 | 3 |
| 2019 | 1 | 2 |
| 2020 | 1 | 0 |
| 2021 | 3 | 2 |
| 2022 | 0 | 1 |
| 2023 | 2 | 2 |
| 2024 | 1 | 1 |
| 2025 | 0 | 1 |
| 2026 | 1 | 2 |
By publication year. Applications have been published since 2001. 2026 runs to 8 Oct.
Subgroups
Granted patents
Recent patents
- Ignition-based protocols for pellet grills19 May 2026US 12,631,336 B2
- Ignition-based protocols for pellet grills30 Jan 2024US 11,885,499 B2Weber-Stephen Products LLC
- Ignition-based protocols for pellet grills11 Apr 2023US 11,624,505 B2Weber-Stephen Products LLC
- Combined heat and power system and method of operation14 Feb 2023US 11,578,652 B2Enexor Energy
- Wood pellet burner unit with sliding floor hopper10 Aug 2021US 11,085,631 B1Original Pellet Grill Company LLC
- Apparatus for feeding solid fuel feedstock into a furnace8 Oct 2026US 2026/0309324 A1British American Tobacco (Investments) Limited
- Wood chip combustion furnace4 Jun 2026US 2026/0153240 A1Haohong Electric Technology (Hubei) Co., Ltd.
- Pellet stove23 Oct 2025US 2025/0327577 A1Enerco Group, Inc.
- Ignition-based protocols for pellet grills15 Feb 2024US 2024/0053018 A1Weber-Stephen Products LLC
- Combustion system, particle separator and feed system for combined heat and power system19 Oct 2023US 2023/0332538 A1Enexor Energy
Most cited
By later US patents
- Mobile pellet stove with thermal barrier and ventilated firepot88US 5,429,110 ATSD Industries, Inc. · 1995
- Solid fuel burner with electrodynamic homogenization38US 9,366,427 B2Clearsign Combustion Corporation · 2016
- Chip wood furnace and furnace retrofitting system34US 4,312,278 ABoard of Trustees of the University of Maine · 1982
- Biomass gasifier combustor34US 4,334,484 AUniversity of Kentucky Research Foundation · 1982
- Biomass pellet-burning orchard heaters33US 5,144,939 A1992