F01K 9/00
Plants characterised by condensers arranged or modified to co-operate with the engines
Official title: Plants characterised by condensers arranged or modified to co-operate with the engines (by condensers structurally combined with engines F01K11/00; steam condensers per se F28B)(F01K23/04 takes precedence)
F01K9/00 (Plants characterised by condensers arranged or modified to co-operate with the engines) appears on 484 US grants and 466 published applications in this corpus.
Search patents in F01K- Granted patents
- 484
- Published applications
- 466
- Assignees
- 247
- Inventors
- 1,093
- Latest grant
- 15 Sep 2026
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1976 | 7 | 0 |
| 1977 | 10 | 0 |
| 1978 | 10 | 0 |
| 1979 | 7 | 0 |
| 1980 | 6 | 0 |
| 1981 | 13 | 0 |
| 1982 | 4 | 0 |
| 1983 | 6 | 0 |
| 1984 | 6 | 0 |
| 1985 | 5 | 0 |
| 1986 | 6 | 0 |
| 1987 | 11 | 0 |
| 1988 | 5 | 0 |
| 1989 | 2 | 0 |
| 1990 | 2 | 0 |
| 1991 | 2 | 0 |
| 1992 | 5 | 0 |
| 1993 | 4 | 0 |
| 1994 | 2 | 0 |
| 1995 | 5 | 0 |
| 1996 | 2 | 0 |
| 1997 | 2 | 0 |
| 1998 | 1 | 0 |
| 1999 | 0 | 0 |
| 2000 | 2 | 0 |
| 2001 | 3 | 1 |
| 2002 | 3 | 0 |
| 2003 | 2 | 5 |
| 2004 | 1 | 6 |
| 2005 | 3 | 11 |
| 2006 | 7 | 4 |
| 2007 | 4 | 5 |
| 2008 | 2 | 1 |
| 2009 | 4 | 15 |
| 2010 | 4 | 23 |
| 2011 | 11 | 17 |
| 2012 | 8 | 33 |
| 2013 | 16 | 29 |
| 2014 | 20 | 22 |
| 2015 | 15 | 48 |
| 2016 | 23 | 32 |
| 2017 | 28 | 39 |
| 2018 | 30 | 36 |
| 2019 | 36 | 36 |
| 2020 | 46 | 28 |
| 2021 | 30 | 17 |
| 2022 | 17 | 12 |
| 2023 | 15 | 12 |
| 2024 | 10 | 15 |
| 2025 | 10 | 11 |
| 2026 | 11 | 8 |
By publication year. Applications have been published since 2001. 2026 runs to 8 Oct.
Subgroups
Granted patents
Recent patents
- Two-phase thermal pump15 Sep 2026US 12,735,999 B2Rolls-Royce North American Technologies Inc.
- Ambient temperature thermal adapter for supercritical carbon dioxide power cycle4 Aug 2026US 12,698,730 B2TerraPower, LLC
- Heat pump systems and methods14 Jul 2026US 12,680,734 B2AtmosZero, Inc.
- Ship waste heat power generation system utilizing waste heat from ships16 Jun 2026US 12,655,777 B2Korea Institute of Ocean Science & Technology
- Tunnel type hybrid cooling steam recycling apparatus21 Apr 2026US 12,607,410 B2Big Sun Energy Technology Inc.
- Ambient temperature thermal adapter for supercritical carbon dioxide power cycle8 Oct 2026US 2026/0309058 A1TerraPower, LLC
- Heat Pump Systems and Methods17 Sep 2026US 2026/0276247 A1AtmosZero, Inc.
- Power generation system3 Sep 2026US 2026/0258738 A1Twenty20 Energy Systems Pte Ltd
- Thermal energy storage system11 Jun 2026US 2026/0160188 A1Technion Research & Development Foundation Limited
- High-efficiency steam power cycle system for cascaded utilization of energy7 May 2026US 2026/0125992 A1Wuhan Second Ship Design and Research Institute
Most cited
By later US patents
- Processing biomass176US 7,932,065 B2Xyleco, Inc. · 2011
- Compression and condensation of turbine exhaust steam88US 6,484,503 B12002
- Heat engine system having a selectively configurable working fluid circuit82US 9,874,112 B2Echogen Power Systems, LLC · 2018
- Systems and methods for controlling the pressure of a working fluid at an inlet of a pressurization device of a heat engine system75US 10,472,994 B2Echogen Power Systems, LLC · 2019
- Coal slurry system65US 4,765,781 ASouthwestern Public Service Company · 1988