F23N 2225/19
Outlet temperature water heat-exchanger
Official title: outlet temperature water heat-exchanger
F23N2225/19 (Outlet temperature water heat-exchanger) appears on 54 US grants and 47 published applications in this corpus.
Search patents in F23N- Granted patents
- 54
- Published applications
- 47
- Assignees
- 42
- Inventors
- 138
- Latest grant
- 7 Jan 2025
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1982 | 1 | 0 |
| 1983 | 0 | 0 |
| 1984 | 0 | 0 |
| 1985 | 1 | 0 |
| 1986 | 0 | 0 |
| 1987 | 1 | 0 |
| 1988 | 0 | 0 |
| 1989 | 1 | 0 |
| 1990 | 1 | 0 |
| 1991 | 0 | 0 |
| 1992 | 0 | 0 |
| 1993 | 0 | 0 |
| 1994 | 3 | 0 |
| 1995 | 0 | 0 |
| 1996 | 1 | 0 |
| 1997 | 1 | 0 |
| 1998 | 2 | 0 |
| 1999 | 2 | 0 |
| 2000 | 3 | 0 |
| 2001 | 2 | 0 |
| 2002 | 1 | 3 |
| 2003 | 2 | 0 |
| 2004 | 3 | 4 |
| 2005 | 1 | 1 |
| 2006 | 1 | 1 |
| 2007 | 0 | 2 |
| 2008 | 0 | 2 |
| 2009 | 2 | 5 |
| 2010 | 1 | 4 |
| 2011 | 1 | 2 |
| 2012 | 2 | 3 |
| 2013 | 3 | 4 |
| 2014 | 5 | 1 |
| 2015 | 2 | 2 |
| 2016 | 1 | 2 |
| 2017 | 1 | 1 |
| 2018 | 2 | 2 |
| 2019 | 1 | 0 |
| 2020 | 2 | 3 |
| 2021 | 1 | 1 |
| 2022 | 1 | 0 |
| 2023 | 1 | 1 |
| 2024 | 0 | 1 |
| 2025 | 1 | 2 |
By publication year. Applications have been published since 2001.
Recent patents
- Gas appliance and a control method thereof7 Jan 2025US 12,188,579 B2Grand Mate Co., Ltd.
- Methods and system for demand-based control of a combination boiler28 Nov 2023US 11,828,474 B2Lochinvar, LLC
- Tankless water heater with bypass valve operating differently in intermittent operation and normal operation26 Apr 2022US 11,313,589 B2Rinnai Corporation
- Segregated fired heater30 Mar 2021US 10,962,259 B2Uop LLC
- Water heater14 Apr 2020US 10,619,889 B2Paloma Co., Ltd.
- System and method for determining heat transfer capacity of an indirect water heater20 Nov 2025US 2025/0354722 A1Laars Heating Systems Company
- Combustion boiler control method, combustion boiler, and boiler computation system3 Apr 2025US 2025/0109850 A1Sumitomo SHI FW Energia Oy
- Method of operating a heat releasing reactor, a heat releasing reactor, and a computation system for a heat releasing reactor14 Nov 2024US 2024/0377059 A1Sumitomo SHI FW Energia Oy
- Gas appliance and a control method thereof2 Mar 2023US 2023/0062854 A1Grand Mate Co., Ltd.
- Water heater4 Mar 2021US 2021/0063054 A1Rinnai Corporation
Most cited
By later US patents
- Integrated appliance control system186US 6,059,195 ATridelta Industries, Inc. · 2000
- Apparatus for modulating the flow of air and fuel to a gas burner90US 5,520,533 AHoneywell Inc. · 1996
- Distributed appliance control system having fault isolation63US 6,728,600 B1Honeywell International Inc. · 2004
- Gas/air ratio control apparatus for a temperature control loop for gas appliances53US 5,630,408 ARanco Incorporated of Delaware · 1997
- Multiple-purpose instantaneous gas water heater46US 4,819,587 AToto Ltd. · 1989