F23K 3/18
Spreader stokers
F23K3/18 (Spreader stokers) appears on 26 US grants and 7 published applications in this corpus.
Search patents in F23K- Granted patents
- 26
- Published applications
- 7
- Assignees
- 15
- Inventors
- 48
- Latest grant
- 13 Nov 2018
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1978 | 1 | 0 |
| 1979 | 1 | 0 |
| 1980 | 0 | 0 |
| 1981 | 1 | 0 |
| 1982 | 1 | 0 |
| 1983 | 1 | 0 |
| 1984 | 2 | 0 |
| 1985 | 2 | 0 |
| 1986 | 2 | 0 |
| 1987 | 1 | 0 |
| 1988 | 0 | 0 |
| 1989 | 0 | 0 |
| 1990 | 2 | 0 |
| 1991 | 1 | 0 |
| 1992 | 1 | 0 |
| 1993 | 1 | 0 |
| 1994 | 0 | 0 |
| 1995 | 1 | 0 |
| 1996 | 0 | 0 |
| 1997 | 0 | 0 |
| 1998 | 1 | 0 |
| 1999 | 0 | 0 |
| 2000 | 0 | 0 |
| 2001 | 0 | 0 |
| 2002 | 0 | 0 |
| 2003 | 1 | 1 |
| 2004 | 0 | 0 |
| 2005 | 0 | 0 |
| 2006 | 0 | 0 |
| 2007 | 0 | 1 |
| 2008 | 0 | 0 |
| 2009 | 0 | 0 |
| 2010 | 1 | 1 |
| 2011 | 0 | 0 |
| 2012 | 0 | 0 |
| 2013 | 1 | 1 |
| 2014 | 0 | 1 |
| 2015 | 1 | 1 |
| 2016 | 1 | 0 |
| 2017 | 1 | 0 |
| 2018 | 1 | 1 |
By publication year. Applications have been published since 2001.
Subgroups
Granted patents
Recent patents
- Automated biomass distribution system13 Nov 2018US 10,125,985 B2
- Automated biomass distribution system5 Dec 2017US 9,835,326 B2Valvexport, Inc.
- Solid fuel burner with electrodynamic homogenization14 Jun 2016US 9,366,427 B2Clearsign Combustion Corporation
- Multi-stage solids feeder system and method13 Oct 2015US 9,156,631 B2General Electric Company
- Feed regulator for thermostatic control17 Dec 2013US 8,607,719 B1
- Automated biomass distribution system8 Feb 2018US 2018/0038591 A1Valvexport, Inc.
- Automated biomass distribution system30 Jul 2015US 2015/0211737 A1Valvexport, Inc.
- Multi-stage solids feeder system and method5 Jun 2014US 2014/0150873 A1General Electric Company
- Solid fuel burner with electrodynamic homogenization3 Oct 2013US 2013/0255549 A1Clearsign Combustion Corporation
- Method for mechanical stoking in firing installations and firing installation23 Dec 2010US 2010/0323310 A1
Most cited
By later US patents
- Solid fuel burner with electrodynamic homogenization38US 9,366,427 B2Clearsign Combustion Corporation · 2016
- Solid fuel burner24US 4,528,917 ANorthwest Iron Fireman, Inc. · 1985
- Distribution of particulate material14US 4,529,337 AClaudius Peters AG · 1985
- Combustion system with partial recirculation of exhaust gases and feed mechanism therefor13US 4,242,972 A1981
- Multi-fuel feeder distributor13US 4,326,469 ADetroit Stoker Company · 1982