F01K 23/04
Condensation heat from one cycle heating the fluid in another cycle
Official title: condensation heat from one cycle heating the fluid in another cycle
F01K23/04 (Condensation heat from one cycle heating the fluid in another cycle) appears on 142 US grants and 130 published applications in this corpus.
Search patents in F01K- Granted patents
- 142
- Published applications
- 130
- Assignees
- 92
- Inventors
- 279
- Latest grant
- 4 Nov 2025
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1976 | 3 | 0 |
| 1977 | 3 | 0 |
| 1978 | 1 | 0 |
| 1979 | 2 | 0 |
| 1980 | 1 | 0 |
| 1981 | 4 | 0 |
| 1982 | 0 | 0 |
| 1983 | 1 | 0 |
| 1984 | 2 | 0 |
| 1985 | 2 | 0 |
| 1986 | 0 | 0 |
| 1987 | 1 | 0 |
| 1988 | 0 | 0 |
| 1989 | 2 | 0 |
| 1990 | 0 | 0 |
| 1991 | 0 | 0 |
| 1992 | 0 | 0 |
| 1993 | 0 | 0 |
| 1994 | 0 | 0 |
| 1995 | 2 | 0 |
| 1996 | 5 | 0 |
| 1997 | 2 | 0 |
| 1998 | 5 | 0 |
| 1999 | 3 | 0 |
| 2000 | 3 | 0 |
| 2001 | 1 | 0 |
| 2002 | 0 | 1 |
| 2003 | 0 | 1 |
| 2004 | 0 | 1 |
| 2005 | 3 | 1 |
| 2006 | 0 | 3 |
| 2007 | 2 | 0 |
| 2008 | 1 | 3 |
| 2009 | 0 | 3 |
| 2010 | 1 | 4 |
| 2011 | 2 | 5 |
| 2012 | 1 | 6 |
| 2013 | 3 | 13 |
| 2014 | 4 | 10 |
| 2015 | 9 | 6 |
| 2016 | 5 | 10 |
| 2017 | 12 | 10 |
| 2018 | 11 | 11 |
| 2019 | 10 | 17 |
| 2020 | 11 | 5 |
| 2021 | 10 | 6 |
| 2022 | 7 | 7 |
| 2023 | 3 | 1 |
| 2024 | 1 | 2 |
| 2025 | 3 | 1 |
| 2026 | 0 | 3 |
By publication year. Applications have been published since 2001. 2026 runs to 8 Oct.
Recent patents
- Cold energy recovery facility and marine vessel4 Nov 2025US 12,460,860 B2Mitsubishi Heavy Industries, Ltd.
- Charge, storage, and discharge energy system using liquid air and sCO225 Mar 2025US 12,258,883 B2Southwest Research Institute
- Organic rankine cycle (ORC) power generation system utilizing LNG cold energy and dual-fuel marine engine waste heat11 Feb 2025US 12,221,922 B2
- Coupled orc heat pump electric generator system27 Aug 2024US 12,071,866 B1
- Particle-based thermal energy storage systems7 Nov 2023US 11,808,523 B2Alliance for Sustainable Energy, LLC
- Low-grade heat engine system2 Jul 2026US 2026/0185508 A1First Pecos, LLC
- Self-sufficient system for evaporation of lng16 Apr 2026US 2026/0103999 A1Nuovo Pignone Tecnologie Srl
- Electrolysis energy recovery29 Jan 2026US 2026/0028934 A1Rtx Corporation
- Heat and power cogeneration system31 Jul 2025US 2025/0243789 A1Practical Solutions LLC
- Modular High-Performance Turbo-Compression Cooling28 Nov 2024US 2024/0392701 A1Colorado State University Research Foundation
Most cited
By later US patents
- Method and apparatus for converting heat from geothermal liquid and geothermal steam to electric power142US 5,440,882 AExergy S.P.A. · 1995
- Method and apparatus for cooling hot fluids112US 5,860,279 A1999
- Method of and apparatus for producing power using steam107US 5,497,624 AOrmat, Inc. · 1996
- Geothermal power plant and method for operating the same91US 4,542,625 A1985
- Cascaded organic rankine cycles for waste heat utilization91US 7,942,001 B2UTC Power Corporation · 2011