Y02E 20/14
Combined heat and power generation [chp]
Official title: Combined heat and power generation [CHP]
Y02E20/14 (Combined heat and power generation [chp]) appears on 1,422 US grants and 1,504 published applications in this corpus.
Search patents in Y02E- Granted patents
- 1,422
- Published applications
- 1,504
- Assignees
- 729
- Inventors
- 2,941
- Latest grant
- 11 Aug 2026
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1976 | 3 | 0 |
| 1977 | 3 | 0 |
| 1978 | 3 | 0 |
| 1979 | 2 | 0 |
| 1980 | 2 | 0 |
| 1981 | 9 | 0 |
| 1982 | 8 | 0 |
| 1983 | 15 | 0 |
| 1984 | 5 | 0 |
| 1985 | 12 | 0 |
| 1986 | 9 | 0 |
| 1987 | 13 | 0 |
| 1988 | 10 | 0 |
| 1989 | 10 | 0 |
| 1990 | 14 | 0 |
| 1991 | 8 | 0 |
| 1992 | 5 | 0 |
| 1993 | 11 | 0 |
| 1994 | 17 | 0 |
| 1995 | 14 | 0 |
| 1996 | 13 | 0 |
| 1997 | 21 | 0 |
| 1998 | 22 | 0 |
| 1999 | 17 | 0 |
| 2000 | 31 | 0 |
| 2001 | 42 | 9 |
| 2002 | 24 | 34 |
| 2003 | 39 | 40 |
| 2004 | 37 | 65 |
| 2005 | 32 | 48 |
| 2006 | 36 | 71 |
| 2007 | 31 | 59 |
| 2008 | 27 | 43 |
| 2009 | 30 | 56 |
| 2010 | 36 | 91 |
| 2011 | 29 | 80 |
| 2012 | 46 | 76 |
| 2013 | 49 | 96 |
| 2014 | 68 | 116 |
| 2015 | 45 | 86 |
| 2016 | 72 | 95 |
| 2017 | 82 | 93 |
| 2018 | 84 | 70 |
| 2019 | 85 | 50 |
| 2020 | 47 | 47 |
| 2021 | 55 | 51 |
| 2022 | 40 | 52 |
| 2023 | 37 | 35 |
| 2024 | 43 | 22 |
| 2025 | 21 | 14 |
| 2026 | 8 | 5 |
By publication year. Applications have been published since 2001. 2026 runs to 8 Oct.
Recent patents
- Control systems for a heat network11 Aug 2026US 12,704,267 B2Siemens Aktiengesellschaft
- Aircraft heat exchangers and plates11 Aug 2026US 12,704,330 B2Rtx Corporation
- Moving and storing energy between utility's energy delivery networks26 May 2026US 12,640,564 B2Power Management Holdings (U.S.), Inc.
- Thermal energy storage system with a heat pump for improved efficiency5 May 2026US 12,618,343 B2Rondo Energy, Inc.
- Method and an apparatus for determining a deviation in a thermal energy circuit10 Mar 2026US 12,571,544 B2E. On Sverige AB
- System for utilizing heat from exhaust gases9 Jul 2026US 2026/0194268 A1Siemens Energy Global GmbH & Co. KG
- Heat utilization system and heat utilization method25 Jun 2026US 2026/0176986 A1Mitsubishi Heavy Industries, Ltd.
- Integrated power production and storage systems7 May 2026US 2026/0125812 A1Mitsubishi Power Americas, Inc.
- Micro-Combined Heat and Power System and Method of Use12 Feb 2026US 2026/0045855 A1Axiom Energy Group, LLC
- Pumped heat energy storage system with load following1 Jan 2026US 2026/0002471 A1Malta Inc.
Most cited
By later US patents
- Power generating system302US 4,754,607 AAllied-Signal Inc. · 1988
- Power plant with carbon dioxide capture and zero pollutant emissions254US 5,724,805 AUniversity of Massachusetts Lowell · 1998
- High power wireless resonant energy transfer system220US 7,880,337 B22011
- Mobile congeneration apparatus including inventive valve and boiler216US 5,517,822 AApplied Energy Systems of Oklahoma, Inc. · 1996
- Solution mining and heating by oxidation for treating hydrocarbon containing formations211US 7,549,470 B2Shell Oil Company · 2009