F24D 19/088
Draining arrangements
Official title: {Draining arrangements}
F24D19/088 (Draining arrangements) appears on 31 US grants and 47 published applications in this corpus.
Search patents in F24D- Granted patents
- 31
- Published applications
- 47
- Assignees
- 28
- Inventors
- 78
- Latest grant
- 14 Oct 2025
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1981 | 1 | 0 |
| 1982 | 0 | 0 |
| 1983 | 0 | 0 |
| 1984 | 0 | 0 |
| 1985 | 1 | 0 |
| 1986 | 0 | 0 |
| 1987 | 0 | 0 |
| 1988 | 1 | 0 |
| 1989 | 0 | 0 |
| 1990 | 0 | 0 |
| 1991 | 0 | 0 |
| 1992 | 0 | 0 |
| 1993 | 0 | 0 |
| 1994 | 2 | 0 |
| 1995 | 0 | 0 |
| 1996 | 1 | 0 |
| 1997 | 1 | 0 |
| 1998 | 0 | 0 |
| 1999 | 0 | 0 |
| 2000 | 0 | 0 |
| 2001 | 0 | 0 |
| 2002 | 0 | 1 |
| 2003 | 0 | 0 |
| 2004 | 0 | 0 |
| 2005 | 0 | 0 |
| 2006 | 0 | 1 |
| 2007 | 1 | 0 |
| 2008 | 0 | 1 |
| 2009 | 0 | 1 |
| 2010 | 0 | 1 |
| 2011 | 0 | 5 |
| 2012 | 1 | 0 |
| 2013 | 1 | 1 |
| 2014 | 0 | 1 |
| 2015 | 0 | 1 |
| 2016 | 0 | 1 |
| 2017 | 1 | 3 |
| 2018 | 1 | 5 |
| 2019 | 2 | 1 |
| 2020 | 2 | 5 |
| 2021 | 4 | 4 |
| 2022 | 2 | 5 |
| 2023 | 2 | 6 |
| 2024 | 3 | 2 |
| 2025 | 4 | 2 |
By publication year. Applications have been published since 2001.
Recent patents
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- Tankless water heater isolation valve assembly10 Apr 2025US 2025/0116412 A1Watts Regulator Co.
- Water heater3 Apr 2025US 2025/0109889 A1Bradford White Corporation
- Drain Systems and Methods for Heater Assemblies18 Jul 2024US 2024/0240829 A1Rheem Manufacturing Company
- Tool and method for cleaning and draining a water heater20 Jun 2024US 2024/0200829 A1
- Air heating apparatus28 Dec 2023US 2023/0417431 A1Kyungdong Navien Co., Ltd.
Most cited
By later US patents
- Near boiler piping apparatus with open drain13US 8,316,886 B2Webstone Company, Inc. · 2012
- Boiler loop system11US 10,458,662 B2NIBCO Inc. · 2019
- Locking drain valve11US 4,512,547 AChartwell Corporation · 1985
- Valve clamp assembly10US 4,249,716 A1981
- Combined control and regulating valve for liquids or gases10US 5,566,711 ATour & Andersson AB · 1996