F02C 1/08
Semi-closed cycles
F02C1/08 (Semi-closed cycles) appears on 123 US grants and 143 published applications in this corpus.
Search patents in F02C- Granted patents
- 123
- Published applications
- 143
- Assignees
- 74
- Inventors
- 265
- Latest grant
- 25 Aug 2026
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1980 | 1 | 0 |
| 1981 | 1 | 0 |
| 1982 | 1 | 0 |
| 1983 | 1 | 0 |
| 1984 | 0 | 0 |
| 1985 | 1 | 0 |
| 1986 | 0 | 0 |
| 1987 | 0 | 0 |
| 1988 | 0 | 0 |
| 1989 | 0 | 0 |
| 1990 | 0 | 0 |
| 1991 | 0 | 0 |
| 1992 | 0 | 0 |
| 1993 | 0 | 0 |
| 1994 | 0 | 0 |
| 1995 | 1 | 0 |
| 1996 | 0 | 0 |
| 1997 | 2 | 0 |
| 1998 | 0 | 0 |
| 1999 | 0 | 0 |
| 2000 | 0 | 0 |
| 2001 | 1 | 0 |
| 2002 | 1 | 3 |
| 2003 | 4 | 2 |
| 2004 | 3 | 5 |
| 2005 | 3 | 2 |
| 2006 | 2 | 4 |
| 2007 | 2 | 2 |
| 2008 | 0 | 3 |
| 2009 | 3 | 3 |
| 2010 | 1 | 7 |
| 2011 | 3 | 3 |
| 2012 | 2 | 5 |
| 2013 | 3 | 8 |
| 2014 | 5 | 17 |
| 2015 | 3 | 12 |
| 2016 | 10 | 6 |
| 2017 | 7 | 4 |
| 2018 | 13 | 5 |
| 2019 | 7 | 10 |
| 2020 | 9 | 5 |
| 2021 | 8 | 3 |
| 2022 | 4 | 7 |
| 2023 | 4 | 6 |
| 2024 | 6 | 13 |
| 2025 | 5 | 3 |
| 2026 | 6 | 5 |
By publication year. Applications have been published since 2001. 2026 runs to 8 Oct.
Recent patents
- Cryogenic fuel semi-closed recirculating bottoming cycle25 Aug 2026US 12,716,388 B2Rtx Corporation
- System for energy storage, compression and recovery30 Jun 2026US 12,669,083 B2Nova Nexus, LLC
- Partial exhaust condensation with cryogenic assisted bottoming cycle16 Jun 2026US 12,655,790 B2Rtx Corporation
- Power system having a gas turbine engine28 Apr 2026US 12,612,874 B2General Electric Company
- Shared cryogenic bottoming cycle31 Mar 2026US 12,589,882 B2Rtx Corporation
- A system and a method for mixing a recirculated exhaust gas stream with air to obtain a gas mixture to be fed to a gas turbine30 Jul 2026US 2026/0218651 A1Nuovo Pignone Tecnologie Srl
- Shared cryogenic bottoming cycle9 Jul 2026US 2026/0192941 A1Rtx Corporation
- Integration systems for gas turbine engines and methods of use7 May 2026US 2026/0126003 A1GE Vernova Infrastructure Technology LLC
- Pylon-mounted bottoming cycle30 Apr 2026US 2026/0117699 A1Rtx Corporation
- Cryogenic fuel semi-closed recirculating bottoming cycle5 Feb 2026US 2026/0036089 A1Rtx Corporation
Most cited
By later US patents
- Carbon dioxide power cycle257US 4,498,289 A1985
- 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
- Partially-open gas turbine cycle providing high thermal efficiencies and ultra-low emissions178US 6,532,745 B12003
- Semi-closed brayton cycle gas turbine power systems169US 6,622,470 B2Clean Energy Systems, Inc. · 2003