Y02B 30/18
Domestic hot-water supply systems using recuperated or waste heat
Y02B30/18 (Domestic hot-water supply systems using recuperated or waste heat) appears on 148 US grants and 170 published applications in this corpus.
Search patents in Y02B- Granted patents
- 148
- Published applications
- 170
- Assignees
- 87
- Inventors
- 317
- Latest grant
- 11 Aug 2026
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1976 | 1 | 0 |
| 1977 | 2 | 0 |
| 1978 | 2 | 0 |
| 1979 | 5 | 0 |
| 1980 | 4 | 0 |
| 1981 | 5 | 0 |
| 1982 | 5 | 0 |
| 1983 | 5 | 0 |
| 1984 | 2 | 0 |
| 1985 | 5 | 0 |
| 1986 | 2 | 0 |
| 1987 | 3 | 0 |
| 1988 | 0 | 0 |
| 1989 | 2 | 0 |
| 1990 | 0 | 0 |
| 1991 | 0 | 0 |
| 1992 | 3 | 0 |
| 1993 | 0 | 0 |
| 1994 | 2 | 0 |
| 1995 | 0 | 0 |
| 1996 | 0 | 0 |
| 1997 | 0 | 0 |
| 1998 | 4 | 0 |
| 1999 | 1 | 0 |
| 2000 | 0 | 0 |
| 2001 | 1 | 1 |
| 2002 | 0 | 1 |
| 2003 | 2 | 0 |
| 2004 | 1 | 1 |
| 2005 | 1 | 2 |
| 2006 | 0 | 0 |
| 2007 | 0 | 2 |
| 2008 | 0 | 5 |
| 2009 | 0 | 7 |
| 2010 | 1 | 15 |
| 2011 | 2 | 12 |
| 2012 | 5 | 11 |
| 2013 | 1 | 17 |
| 2014 | 6 | 12 |
| 2015 | 5 | 13 |
| 2016 | 8 | 7 |
| 2017 | 7 | 12 |
| 2018 | 11 | 11 |
| 2019 | 8 | 6 |
| 2020 | 11 | 10 |
| 2021 | 3 | 7 |
| 2022 | 9 | 7 |
| 2023 | 5 | 6 |
| 2024 | 5 | 3 |
| 2025 | 2 | 1 |
| 2026 | 1 | 1 |
By publication year. Applications have been published since 2001. 2026 runs to 8 Oct.
Recent patents
- Water heaters with computing elements as a network11 Aug 2026US 12,704,888 B2
- Back-up generator and associated electric power systems20 May 2025US 12,308,696 B2Blue Power Systems, Inc.
- Heating system18 Feb 2025US 12,228,293 B2Intellihot, Inc.
- Hot water returning system26 Nov 2024US 12,152,789 B2Kyungdong Navien Co., Ltd.
- Apparatus and method for heat recovery from a liquid medium16 Jul 2024US 12,038,181 B2Revincus GmbH
- A water tank arrangement and a method arranged to circulate waste water in response to a predetermined temperature20 Aug 2026US 2026/0243076 A1E3 Equipment AB
- Back-up generator and associated electric power systems24 Jul 2025US 2025/0239885 A1Blue Power Systems, Inc.
- Water distribution system with hygienisation capacity3 Oct 2024US 2024/0328633 A1Orbital Systems AB
- Electronic switch system for a water heater18 Jan 2024US 2024/0019174 A1Bradford White Corporation
- Back-up generator and associated electric power systems18 Jan 2024US 2024/0022109 A1Blue Power Systems, Inc.
Most cited
By later US patents
- Domestic water system51US 4,228,006 A1980
- Heat exchanger for a shower or bathtub48US 10,072,897 B2Joulia AG · 2018
- Automatic hot water recovery system43US 4,321,943 A1982
- Method of and apparatus for recovery of waste energy33US 4,529,032 AMolitor Industries, Inc. · 1985
- Complete system for a home air heating and cooling, hot and cold water, and electric power30US 4,065,055 A1977