F24D 11/0207
District heating system
Official title: {district heating system}
F24D11/0207 (District heating system) appears on 23 US grants and 28 published applications in this corpus.
Search patents in F24D- Granted patents
- 23
- Published applications
- 28
- Assignees
- 14
- Inventors
- 64
- Latest grant
- 3 Feb 2026
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1977 | 1 | 0 |
| 1978 | 1 | 0 |
| 1979 | 0 | 0 |
| 1980 | 0 | 0 |
| 1981 | 0 | 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 | 1 | 0 |
| 2000 | 0 | 0 |
| 2001 | 0 | 0 |
| 2002 | 0 | 0 |
| 2003 | 0 | 0 |
| 2004 | 0 | 0 |
| 2005 | 0 | 0 |
| 2006 | 0 | 0 |
| 2007 | 0 | 0 |
| 2008 | 0 | 0 |
| 2009 | 0 | 0 |
| 2010 | 0 | 0 |
| 2011 | 0 | 1 |
| 2012 | 0 | 2 |
| 2013 | 0 | 1 |
| 2014 | 0 | 0 |
| 2015 | 0 | 0 |
| 2016 | 1 | 1 |
| 2017 | 0 | 1 |
| 2018 | 0 | 2 |
| 2019 | 1 | 2 |
| 2020 | 2 | 2 |
| 2021 | 2 | 7 |
| 2022 | 1 | 3 |
| 2023 | 4 | 2 |
| 2024 | 3 | 0 |
| 2025 | 4 | 1 |
| 2026 | 2 | 3 |
By publication year. Applications have been published since 2001. 2026 runs to 8 Oct.
Recent patents
- Power converter for a thermal system3 Feb 2026US 12,540,955 B2Watlow Electric Manufacturing Company
- System and method for controlling power to a heater13 Jan 2026US 12,523,683 B2Watlow Electric Manufacturing Company
- System for utilizing waste heat of data center18 Nov 2025US 12,474,090 B2Beijing Youzhuju Network Technology Co., Ltd.
- Power converter for a thermal system21 Oct 2025US 12,449,449 B2Watlow Electric Manufacturing Company
- Power converter for a thermal system7 Oct 2025US 12,436,175 B2Watlow Electric Manufacturing Company
- Power converter for a thermal system28 May 2026US 2026/0147023 A1Watlow Electric Manufacturing Company
- System and method for controlling power to a heater14 May 2026US 2026/0133229 A1Watlow Electric Manufacturing Company
- Heat and cold storage tank with counterflow heat exchanger5 Mar 2026US 2026/0063375 A1
- System for utilizing waste heat of data center16 Jan 2025US 2025/0020365 A1Beijing Youzhuju Network Technology Co., Ltd.
- Controlling of a district thermal energy distribution system6 Jul 2023US 2023/0213212 A1E. On Sverige AB
Most cited
By later US patents
- Geothermal community loop field31US 5,992,507 APhillips Petroleum Company · 1999
- Method and system utilizing steam turbine and heat pump10US 4,093,868 A1978
- Power converter for a thermal system7US 10,690,705 B2Watlow Electric Manufacturing Company · 2020
- Energy source for large heating systems7US 4,055,299 AStal-Laval Turbin AB · 1977
- System and method for controlling power to a heater3US 10,908,195 B2Watlow Electric Manufacturing Company · 2021