F23N 2237/04
At two or more different localities
Official title: at two or more different localities
F23N2237/04 (At two or more different localities) appears on 14 US grants and 23 published applications in this corpus.
Search patents in F23N- Granted patents
- 14
- Published applications
- 23
- Assignees
- 15
- Inventors
- 66
- Latest grant
- 17 Feb 2026
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1980 | 1 | 0 |
| 1981 | 1 | 0 |
| 1982 | 0 | 0 |
| 1983 | 0 | 0 |
| 1984 | 0 | 0 |
| 1985 | 0 | 0 |
| 1986 | 0 | 0 |
| 1987 | 0 | 0 |
| 1988 | 0 | 0 |
| 1989 | 0 | 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 | 0 |
| 2004 | 0 | 1 |
| 2005 | 0 | 1 |
| 2006 | 0 | 1 |
| 2007 | 1 | 0 |
| 2008 | 0 | 1 |
| 2009 | 1 | 0 |
| 2010 | 0 | 2 |
| 2011 | 0 | 1 |
| 2012 | 0 | 0 |
| 2013 | 2 | 0 |
| 2014 | 0 | 1 |
| 2015 | 0 | 0 |
| 2016 | 0 | 0 |
| 2017 | 0 | 1 |
| 2018 | 0 | 3 |
| 2019 | 0 | 1 |
| 2020 | 1 | 1 |
| 2021 | 0 | 1 |
| 2022 | 2 | 1 |
| 2023 | 2 | 3 |
| 2024 | 1 | 1 |
| 2025 | 1 | 2 |
| 2026 | 1 | 1 |
By publication year. Applications have been published since 2001. 2026 runs to 8 Oct.
Recent patents
- Gas turbine combustor having a first combustion zone receiving multiple fuels and a second combustion zone receiving a fuel not containing nitrogen atoms17 Feb 2026US 12,553,394 B2IHI Corporation
- Processes and apparatuses for burning a hydrogen fuel and a hydrocarbon fuel26 Aug 2025US 12,398,879 B2Uop LLC
- Online pulverized coal concentration regulator and regulating method17 Sep 2024US 12,092,327 B2
- System and method for operating a combustion chamber4 Apr 2023US 11,619,384 B2General Electric Technology GmbH
- Water heater and boiler processes10 Jan 2023US 11,549,681 B2
- System and method for optimizing combustion in a boiler30 Apr 2026US 2026/0117968 A1General Electric Technology GmbH
- Methods for providing enhanced staged oxygen control oxygen combustion and devices thereof24 Jul 2025US 2025/0237379 A1Selas Heat Technology Company LLC
- Combustion system2 Jan 2025US 2025/0003594 A1IHI Corporation
- Gas shutoff device, and wireless device for gas shutoff device7 Nov 2024US 2024/0369222 A1Panasonic Intellectual Property Management Co., Ltd.
- Processes and apparatuses for burning a hydrogen fuel and a hydrocarbon fuel14 Sep 2023US 2023/0288057 A1Uop LLC
Most cited
By later US patents
- Programmer1,483US 4,213,562 A1980
- Electronic multi-zone timed temperature control apparatus11US 4,298,163 AEnvirotronics · 1981
- Environmental monitoring and reporting system for EPA cluster rule 0100942US 7,231,323 B2International Paper Company · 2007
- Method for starting premixed combustion in combustor for two-shaft gas turbine2US 8,499,541 B2Hitachi, Ltd. · 2013
- Method and device for heating a furnace1US 10,746,402 B2Linde Aktiengesellschaft · 2020