F02C 7/28
Arrangement of seals
F02C7/28 (Arrangement of seals) appears on 975 US grants and 1,043 published applications in this corpus.
Search patents in F02C- Granted patents
- 975
- Published applications
- 1,043
- Assignees
- 141
- Inventors
- 1,828
- Latest grant
- 22 Sep 2026
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1979 | 2 | 0 |
| 1980 | 1 | 0 |
| 1981 | 0 | 0 |
| 1982 | 1 | 0 |
| 1983 | 1 | 0 |
| 1984 | 3 | 0 |
| 1985 | 1 | 0 |
| 1986 | 0 | 0 |
| 1987 | 2 | 0 |
| 1988 | 3 | 0 |
| 1989 | 0 | 0 |
| 1990 | 2 | 0 |
| 1991 | 2 | 0 |
| 1992 | 3 | 0 |
| 1993 | 2 | 0 |
| 1994 | 0 | 0 |
| 1995 | 0 | 0 |
| 1996 | 0 | 0 |
| 1997 | 2 | 0 |
| 1998 | 1 | 0 |
| 1999 | 2 | 0 |
| 2000 | 0 | 0 |
| 2001 | 3 | 0 |
| 2002 | 2 | 0 |
| 2003 | 13 | 10 |
| 2004 | 4 | 7 |
| 2005 | 7 | 18 |
| 2006 | 7 | 9 |
| 2007 | 5 | 20 |
| 2008 | 8 | 14 |
| 2009 | 5 | 23 |
| 2010 | 9 | 22 |
| 2011 | 18 | 13 |
| 2012 | 18 | 25 |
| 2013 | 18 | 59 |
| 2014 | 30 | 74 |
| 2015 | 37 | 59 |
| 2016 | 45 | 95 |
| 2017 | 54 | 65 |
| 2018 | 82 | 96 |
| 2019 | 93 | 83 |
| 2020 | 122 | 88 |
| 2021 | 94 | 69 |
| 2022 | 88 | 72 |
| 2023 | 76 | 33 |
| 2024 | 43 | 42 |
| 2025 | 40 | 32 |
| 2026 | 26 | 15 |
By publication year. Applications have been published since 2001. 2026 runs to 8 Oct.
Recent patents
- Turbine engine having a compression section22 Sep 2026US 12,742,419 B1General Electric Company
- Sealing ring25 Aug 2026US 12,716,361 B2Industria De Turbo Propulsores, S.A.U.
- Seal assembly with anti-rotation feature25 Aug 2026US 12,716,490 B2Pratt & Whitney Canada Corp.
- Gas turbine engine defining a rotor cavity11 Aug 2026US 12,704,095 B2General Electric Company
- Gas turbine engine turbine section with axial seal28 Jul 2026US 12,692,795 B2Rtx Corporation
- Acoustic damper assembly for a gas turbine engine13 Aug 2026US 2026/0235072 A1General Electric Company
- Apparatus and method of purging gas turbine exhaust trough to reduce hot flow leakage23 Jul 2026US 2026/0210274 A1General Electric Company
- Cmc component with cover plate23 Jul 2026US 2026/0210291 A1Rtx Corporation
- Reheater interface25 Jun 2026US 2026/0177009 A1ROLLS-ROYCE plc
- Seal for sealing between multiple panels11 Jun 2026US 2026/0160334 A1ROLLS-ROYCE plc
Most cited
By later US patents
- End rail cooling for combined high and low pressure turbine shroud102US 6,340,285 B12002
- Sliding duct seal67US 4,712,370 AThe United States of America as represented by the Secretary of the Air Force · 1987
- Turbine power plant having an axially loaded floating brush seal66US 6,622,490 B2Watson Cogeneration Company · 2003
- Turbine shroud segment55US 7,186,078 B2Ishikawajima-Harima Heavy Industries Co., Ltd. · 2007
- Seal assembly for an intershaft seal in a gas turbine engine53US 6,196,790 B1United Technologies Corporation · 2001