F23N 2225/18
Feedwater temperature
Official title: feedwater temperature
F23N2225/18 (Feedwater temperature) appears on 61 US grants and 27 published applications in this corpus.
Search patents in F23N- Granted patents
- 61
- Published applications
- 27
- Assignees
- 38
- Inventors
- 119
- Latest grant
- 26 Mar 2024
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1983 | 2 | 0 |
| 1984 | 4 | 0 |
| 1985 | 3 | 0 |
| 1986 | 3 | 0 |
| 1987 | 4 | 0 |
| 1988 | 5 | 0 |
| 1989 | 2 | 0 |
| 1990 | 2 | 0 |
| 1991 | 1 | 0 |
| 1992 | 3 | 0 |
| 1993 | 0 | 0 |
| 1994 | 2 | 0 |
| 1995 | 0 | 0 |
| 1996 | 1 | 0 |
| 1997 | 0 | 0 |
| 1998 | 1 | 0 |
| 1999 | 0 | 0 |
| 2000 | 3 | 0 |
| 2001 | 0 | 0 |
| 2002 | 0 | 1 |
| 2003 | 1 | 0 |
| 2004 | 3 | 4 |
| 2005 | 1 | 1 |
| 2006 | 2 | 2 |
| 2007 | 0 | 1 |
| 2008 | 1 | 0 |
| 2009 | 1 | 3 |
| 2010 | 1 | 0 |
| 2011 | 1 | 3 |
| 2012 | 0 | 1 |
| 2013 | 2 | 1 |
| 2014 | 4 | 1 |
| 2015 | 1 | 2 |
| 2016 | 1 | 1 |
| 2017 | 1 | 2 |
| 2018 | 1 | 0 |
| 2019 | 1 | 0 |
| 2020 | 1 | 1 |
| 2021 | 0 | 2 |
| 2022 | 1 | 1 |
| 2023 | 0 | 0 |
| 2024 | 1 | 0 |
By publication year. Applications have been published since 2001.
Recent patents
- Fluid heating system26 Mar 2024US 11,938,788 B2
- Tankless water heater with bypass valve operating differently in intermittent operation and normal operation26 Apr 2022US 11,313,589 B2Rinnai Corporation
- Voltage compensation in an irrigation control device7 Apr 2020US 10,609,877 B2Rain Bird Corporation
- Method for detecting blockage in exhaust flue of gas boiler26 Nov 2019US 10,488,042 B2Kyungdong Navien Co., Ltd.
- Heater and method of operation therefor27 Nov 2018US 10,138,859 B2Jaguar Land Rover Limited
- Fluid Heating System31 Mar 2022US 2022/0097484 A1
- Hot water supply device27 May 2021US 2021/0156593 A1Noritz Corporation
- Water heater4 Mar 2021US 2021/0063054 A1Rinnai Corporation
- Water heating apparatus and water heating system31 Dec 2020US 2020/0408442 A1Noritz Corporation
- Voltage compensation in an irrigation control device14 Sep 2017US 2017/0258019 A1Rain Bird Corporation
Most cited
By later US patents
- Integrated appliance control system186US 6,059,195 ATridelta Industries, Inc. · 2000
- Hot water control and management system78US 4,508,261 A1985
- Hot water heater controller68US 4,832,259 AFluidmaster, Inc. · 1989
- Distributed appliance control system having fault isolation63US 6,728,600 B1Honeywell International Inc. · 2004
- Burner apparatus60US 4,768,947 ARinnai Corporation · 1988