F23N 2237/20
One or more bypass conduits
Official title: one or more bypass conduits
F23N2237/20 (One or more bypass conduits) appears on 36 US grants and 31 published applications in this corpus.
Search patents in F23N- Granted patents
- 36
- Published applications
- 31
- Assignees
- 36
- Inventors
- 100
- Latest grant
- 27 Dec 2022
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1980 | 1 | 0 |
| 1981 | 0 | 0 |
| 1982 | 1 | 0 |
| 1983 | 1 | 0 |
| 1984 | 2 | 0 |
| 1985 | 1 | 0 |
| 1986 | 2 | 0 |
| 1987 | 1 | 0 |
| 1988 | 1 | 0 |
| 1989 | 0 | 0 |
| 1990 | 0 | 0 |
| 1991 | 0 | 0 |
| 1992 | 0 | 0 |
| 1993 | 1 | 0 |
| 1994 | 0 | 0 |
| 1995 | 0 | 0 |
| 1996 | 0 | 0 |
| 1997 | 0 | 0 |
| 1998 | 1 | 0 |
| 1999 | 1 | 0 |
| 2000 | 0 | 0 |
| 2001 | 1 | 0 |
| 2002 | 0 | 2 |
| 2003 | 1 | 0 |
| 2004 | 0 | 0 |
| 2005 | 0 | 2 |
| 2006 | 0 | 0 |
| 2007 | 1 | 0 |
| 2008 | 0 | 3 |
| 2009 | 0 | 0 |
| 2010 | 0 | 3 |
| 2011 | 1 | 4 |
| 2012 | 3 | 3 |
| 2013 | 3 | 3 |
| 2014 | 3 | 0 |
| 2015 | 0 | 3 |
| 2016 | 2 | 1 |
| 2017 | 3 | 2 |
| 2018 | 1 | 0 |
| 2019 | 0 | 1 |
| 2020 | 1 | 2 |
| 2021 | 0 | 1 |
| 2022 | 3 | 0 |
| 2023 | 0 | 0 |
| 2024 | 0 | 0 |
| 2025 | 0 | 1 |
By publication year. Applications have been published since 2001.
Recent patents
- Valve arrangement for a gas burner27 Dec 2022US 11,536,452 B2Orkli, S. Coop.
- Standing pilot igniter for oilfield separators20 Sep 2022US 11,448,399 B2Dragonfire Technologies, Inc.
- Method for operating flue gas purification system13 Sep 2022US 11,441,774 B2Mitsubishi Power, Ltd.
- Gas control valve, hob and gas oven28 Apr 2020US 10,634,360 B2BSH Hausgeräte GmbH
- Method to operate a combustor of a gas turbine25 Sep 2018US 10,082,086 B2Siemens Aktiengesellschaft
- Combustion system able to operate with recycling of the combustion gas27 Nov 2025US 2025/0362016 A1Carbodown
- Valve arrangement for a gas burner29 Apr 2021US 2021/0123597 A1Orkli, S. Coop.
- Standing Pilot Igniter for Oilfield Separators21 May 2020US 2020/0158336 A1Dragonfire Technologies, Inc.
- Method for operating flue gas purification system14 May 2020US 2020/0149741 A1Mitsubishi Hitachi Power Systems, Ltd.
- Heat engine and method for operating a heat engine14 Feb 2019US 2019/0048804 A1Dürr Systems AG
Most cited
By later US patents
- Fuel selectable heating devices50US 8,152,515 B2Continental Appliances, Inc. · 2012
- Bulb-operated modulating gas valve with minimum bypass40US 5,944,257 AHoneywell Inc. · 1999
- Furnace control method34US 4,474,121 ASterling Drug Inc. · 1984
- Variable output multistage gas furnace33US 6,179,212 B22001
- Device for increasing power for a limited time19US 8,001,957 B2BSH Bosch und Siemens Hausgeraete GmbH · 2011