F02C 6/18
Plural gas-turbine plants: using the waste heat of gas-turbine plants outside the
Official title: using the waste heat of gas-turbine plants outside the plants themselves, e.g. gas-turbine power heat plants (using waste heat as source of energy for refrigeration plants F25B27/02; using the waste heat of a gasturbine for steam generation or in a steam cycle see F01K23/10)
F02C6/18 (Plural gas-turbine plants: using the waste heat of gas-turbine plants outside the) appears on 1,160 US grants and 1,380 published applications in this corpus.
Search patents in F02C- Granted patents
- 1,160
- Published applications
- 1,380
- Assignees
- 432
- Inventors
- 2,450
- Latest grant
- 22 Sep 2026
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1976 | 5 | 0 |
| 1977 | 1 | 0 |
| 1978 | 4 | 0 |
| 1979 | 4 | 0 |
| 1980 | 1 | 0 |
| 1981 | 6 | 0 |
| 1982 | 5 | 0 |
| 1983 | 6 | 0 |
| 1984 | 3 | 0 |
| 1985 | 9 | 0 |
| 1986 | 4 | 0 |
| 1987 | 3 | 0 |
| 1988 | 2 | 0 |
| 1989 | 5 | 0 |
| 1990 | 3 | 0 |
| 1991 | 1 | 0 |
| 1992 | 1 | 0 |
| 1993 | 4 | 0 |
| 1994 | 6 | 0 |
| 1995 | 13 | 0 |
| 1996 | 4 | 0 |
| 1997 | 8 | 0 |
| 1998 | 9 | 0 |
| 1999 | 7 | 0 |
| 2000 | 13 | 0 |
| 2001 | 30 | 10 |
| 2002 | 19 | 20 |
| 2003 | 29 | 15 |
| 2004 | 16 | 47 |
| 2005 | 23 | 25 |
| 2006 | 22 | 28 |
| 2007 | 17 | 35 |
| 2008 | 7 | 39 |
| 2009 | 11 | 46 |
| 2010 | 26 | 77 |
| 2011 | 28 | 57 |
| 2012 | 31 | 77 |
| 2013 | 39 | 58 |
| 2014 | 55 | 90 |
| 2015 | 40 | 73 |
| 2016 | 54 | 78 |
| 2017 | 50 | 79 |
| 2018 | 74 | 75 |
| 2019 | 66 | 54 |
| 2020 | 64 | 49 |
| 2021 | 58 | 52 |
| 2022 | 60 | 48 |
| 2023 | 52 | 50 |
| 2024 | 59 | 94 |
| 2025 | 73 | 59 |
| 2026 | 30 | 45 |
By publication year. Applications have been published since 2001. 2026 runs to 8 Oct.
Recent patents
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- High temperature anti-ice systems for aircraft engines8 Sep 2026US 12,729,645 B2General Electric Company
- H2 power plant with O2 integration25 Aug 2026US 12,716,371 B2Mitsubishi Power Americas, Inc.
- Aircraft exhaust waste heat recovery for icing mitigation1 Oct 2026US 2026/0298141 A1General Electric Company
- Single-shaft combined cycle plant control device and single-shaft combined cycle plant control method3 Sep 2026US 2026/0258757 A1Mitsubishi Heavy Industries, Ltd.
- Process for producing power in a gas turbine20 Aug 2026US 2026/0243197 A1Johnson Matthey Davy Technologies Limited
- Electrical power generation system13 Aug 2026US 2026/0235069 A1Mitsubishi Heavy Industries, Ltd.
- Utilizing a combined empirical and deterministic model for automated tuning of gas turbine combustion systems6 Aug 2026US 2026/0226864 A1NAES Corporation
Most cited
By later US patents
- Power generating system302US 4,754,607 AAllied-Signal Inc. · 1988
- Self-contained energy center for producing mechanical, electrical, and heat energy199US 6,107,693 ASolo Energy Corporation · 2000
- Gas turbine compressor inlet pressurization system and method for power augmentation196US 6,530,224 B1General Electric Company · 2003
- Semi-closed Brayton cycle gas turbine power systems196US 6,910,335 B2Clean Energy Systems, Inc. · 2005
- Semi-closed brayton cycle gas turbine power systems191US 6,637,183 B2Clean Energy Systems, Inc. · 2003