F01K 23/02
The engine cycles being thermally coupled
Official title: the engine cycles being thermally coupled
F01K23/02 (The engine cycles being thermally coupled) appears on 2,612 US grants and 2,649 published applications in this corpus.
Search patents in F01K- Granted patents
- 2,612
- Published applications
- 2,649
- Assignees
- 818
- Inventors
- 4,504
- Latest grant
- 15 Sep 2026
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1976 | 31 | 0 |
| 1977 | 17 | 0 |
| 1978 | 16 | 0 |
| 1979 | 13 | 0 |
| 1980 | 16 | 0 |
| 1981 | 20 | 0 |
| 1982 | 20 | 0 |
| 1983 | 11 | 0 |
| 1984 | 24 | 0 |
| 1985 | 21 | 0 |
| 1986 | 19 | 0 |
| 1987 | 20 | 0 |
| 1988 | 9 | 0 |
| 1989 | 18 | 0 |
| 1990 | 33 | 0 |
| 1991 | 24 | 0 |
| 1992 | 12 | 0 |
| 1993 | 28 | 0 |
| 1994 | 35 | 0 |
| 1995 | 39 | 0 |
| 1996 | 29 | 0 |
| 1997 | 36 | 0 |
| 1998 | 45 | 0 |
| 1999 | 32 | 0 |
| 2000 | 43 | 0 |
| 2001 | 58 | 28 |
| 2002 | 46 | 32 |
| 2003 | 44 | 36 |
| 2004 | 35 | 72 |
| 2005 | 40 | 39 |
| 2006 | 34 | 40 |
| 2007 | 20 | 49 |
| 2008 | 22 | 47 |
| 2009 | 18 | 97 |
| 2010 | 37 | 141 |
| 2011 | 50 | 147 |
| 2012 | 64 | 157 |
| 2013 | 93 | 160 |
| 2014 | 112 | 181 |
| 2015 | 105 | 179 |
| 2016 | 116 | 170 |
| 2017 | 139 | 198 |
| 2018 | 158 | 169 |
| 2019 | 152 | 143 |
| 2020 | 156 | 111 |
| 2021 | 126 | 90 |
| 2022 | 103 | 93 |
| 2023 | 86 | 71 |
| 2024 | 73 | 94 |
| 2025 | 74 | 69 |
| 2026 | 40 | 36 |
By publication year. Applications have been published since 2001. 2026 runs to 8 Oct.
Subgroups
Granted patents
Recent patents
- Steam supply system and steam supply method15 Sep 2026US 12,735,998 B2Mitsubishi Heavy Industries, Ltd.
- Thermal energy storage system and method with heat recovery steam generator1 Sep 2026US 12,723,525 B2Nooter/Eriksen, Inc.
- Integrated carbon sequestration and power generation system and methods of use1 Sep 2026US 12,723,540 B2Arbor Energy and Resources Corporation
- H2 power plant with O2 integration25 Aug 2026US 12,716,371 B2Mitsubishi Power Americas, Inc.
- Power generation system18 Aug 2026US 12,710,018 B2Landmark Technology Corporation
- System for reheat steam temperature turndown control in heat recovery steam generators8 Oct 2026US 2026/0309057 A1GE Vernova Infrastructure Technology LLC
- System and method for separation and use of nitrogen from inlet air or flue gas24 Sep 2026US 2026/0284593 A1GE Infrastructure Technology LLC
- Steam supply system and steam supply method24 Sep 2026US 2026/0286868 A1Mitsubishi Heavy Industries, Ltd.
- Power generation system3 Sep 2026US 2026/0258737 A1Twenty20 Energy Systems Pte Ltd
- Ammonia slip mitigation systems and methods30 Jul 2026US 2026/0217576 A1CPV Power Holdings, LP
Most cited
By later US patents
- Method of power generation via coal gasification and liquid hydrocarbon synthesis315US 3,986,349 AChevron Research Company · 1976
- Medium-load power-generating plant with integrated coal gasification plant287US 4,608,818 AKraftwerk Union Aktiengesellschaft · 1986
- Power plant with carbon dioxide capture and zero pollutant emissions254US 5,724,805 AUniversity of Massachusetts Lowell · 1998
- Mobile congeneration apparatus including inventive valve and boiler216US 5,517,822 AApplied Energy Systems of Oklahoma, Inc. · 1996
- Solid-fueled power generation system with carbon dioxide sequestration and method therefor203US 6,148,602 ANorther Research & Engineering Corporation · 2000