F23M 3/02
Modified for circulation of fluids
Official title: modified for circulation of fluids, e.g. air, steam, water
F23M3/02 (Modified for circulation of fluids) appears on 6 US grants and 5 published applications in this corpus.
Search patents in F23M- Granted patents
- 6
- Published applications
- 5
- Assignees
- 5
- Inventors
- 17
- Latest grant
- 6 Mar 2012
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1989 | 1 | 0 |
| 1990 | 0 | 0 |
| 1991 | 0 | 0 |
| 1992 | 0 | 0 |
| 1993 | 0 | 0 |
| 1994 | 0 | 0 |
| 1995 | 0 | 0 |
| 1996 | 0 | 0 |
| 1997 | 0 | 0 |
| 1998 | 0 | 0 |
| 1999 | 0 | 0 |
| 2000 | 0 | 0 |
| 2001 | 0 | 0 |
| 2002 | 0 | 0 |
| 2003 | 0 | 1 |
| 2004 | 0 | 0 |
| 2005 | 0 | 0 |
| 2006 | 0 | 0 |
| 2007 | 1 | 1 |
| 2008 | 1 | 1 |
| 2009 | 0 | 2 |
| 2010 | 1 | 0 |
| 2011 | 1 | 0 |
| 2012 | 1 | 0 |
By publication year. Applications have been published since 2001.
Subgroups
Granted patents
Recent patents
- Method and apparatus for controlling gas flow patterns inside a heater chamber and equalizing radiant heat flux to a double fired coil6 Mar 2012US 8,128,399 B1Great Southern Flameless, LLC
- Automatically controlled outdoor pelletized bio-fuel-burning hydronic heater6 Sep 2011US 8,011,329 B2
- Gas curtain assemby for muffled continuous furnaces15 Jun 2010US 7,736,583 B2The BOC Group, Inc.
- Water-cooled grate23 Sep 2008US 7,426,892 B2Korea Institute of Science and Technology
- Waste gas treating device having flow regulator4 Dec 2007US 7,303,730 B2Babcock-Hitachi Kabushiki Kaisha
- Firebox boiler with reduced temperature variation21 May 2009US 2009/0126653 A1
- Automatically controlled outdoor pelletized bio-fuel-burning hydronic heater29 Jan 2009US 2009/0025654 A1
- Gas curtain assemby for muffled continuous furnaces17 Apr 2008US 2008/0087204 A1The BOC Group, Inc.
- Water-cooled grate11 Jan 2007US 2007/0006785 A1Korea Institute of Science and Technology
- Waste gas treating device having flow regulator14 Aug 2003US 2003/0152498 A1Babcock-Hitachi Kabushiki Kaisha
Most cited
By later US patents
- Automatically controlled outdoor pelletized bio-fuel-burning hydronic heater8US 8,011,329 B22011
- Maple syrup vaporizer apparatus with hollow shell recirculation arch6US 4,796,602 ASmall Brothers U.S.A., Inc. · 1989
- Waste gas treating device having flow regulator5US 7,303,730 B2Babcock-Hitachi Kabushiki Kaisha · 2007
- Method and apparatus for controlling gas flow patterns inside a heater chamber and equalizing radiant heat flux to a double fired coil5US 8,128,399 B1Great Southern Flameless, LLC · 2012