F28D 2021/0021
For aircrafts or cosmonautics
Official title: {for aircrafts or cosmonautics}
F28D2021/0021 (For aircrafts or cosmonautics) appears on 477 US grants and 601 published applications in this corpus.
Search patents in F28D- Granted patents
- 477
- Published applications
- 601
- Assignees
- 136
- Inventors
- 1,069
- Latest grant
- 6 Oct 2026
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1978 | 1 | 0 |
| 1979 | 0 | 0 |
| 1980 | 1 | 0 |
| 1981 | 1 | 0 |
| 1982 | 0 | 0 |
| 1983 | 0 | 0 |
| 1984 | 1 | 0 |
| 1985 | 0 | 0 |
| 1986 | 0 | 0 |
| 1987 | 0 | 0 |
| 1988 | 0 | 0 |
| 1989 | 0 | 0 |
| 1990 | 1 | 0 |
| 1991 | 0 | 0 |
| 1992 | 1 | 0 |
| 1993 | 5 | 0 |
| 1994 | 0 | 0 |
| 1995 | 1 | 0 |
| 1996 | 1 | 0 |
| 1997 | 2 | 0 |
| 1998 | 2 | 0 |
| 1999 | 1 | 0 |
| 2000 | 2 | 0 |
| 2001 | 0 | 0 |
| 2002 | 3 | 2 |
| 2003 | 0 | 1 |
| 2004 | 4 | 1 |
| 2005 | 0 | 2 |
| 2006 | 0 | 2 |
| 2007 | 1 | 2 |
| 2008 | 1 | 5 |
| 2009 | 2 | 6 |
| 2010 | 3 | 4 |
| 2011 | 4 | 5 |
| 2012 | 4 | 6 |
| 2013 | 2 | 16 |
| 2014 | 8 | 23 |
| 2015 | 6 | 17 |
| 2016 | 9 | 39 |
| 2017 | 19 | 58 |
| 2018 | 29 | 48 |
| 2019 | 47 | 57 |
| 2020 | 47 | 44 |
| 2021 | 55 | 53 |
| 2022 | 58 | 55 |
| 2023 | 46 | 49 |
| 2024 | 42 | 36 |
| 2025 | 43 | 45 |
| 2026 | 24 | 25 |
By publication year. Applications have been published since 2001. 2026 runs to 8 Oct.
Recent patents
- Additively manufactured heat exchanger and diffuser pipe coupled to a compressor stage6 Oct 2026US 12,752,921 B2Hamilton Sundstrand Corporation
- Loop heat pipe for staged reentry spacecraft29 Sep 2026US 12,747,038 B1The United States of America as represented by the Secretary of the Air Force
- Method of nacelle air heat exchanger integration for a hydrogen fueled fuel cell powered aircraft25 Aug 2026US 12,716,394 B2The Boeing Company
- Modular double brazed phase-change material heat exchanger18 Aug 2026US 12,710,234 B2Blue Origin Manufacturing, LLC
- Heat exchanger assembly for an aircraft28 Jul 2026US 12,692,009 B2Pratt & Whitney Canada Corp.
- Low Drag Heat Exchanger17 Sep 2026US 2026/0274430 A1Textron Aviation Inc.
- Penetration-free heat transfer system17 Sep 2026US 2026/0276315 A1Government of the United States as Represented by the Secretary of the Air Force
- Vacuum spray boiler3 Sep 2026US 2026/0259011 A1Blue Origin Manufacturing, LLC
- High power distribution architectures27 Aug 2026US 2026/0249713 A1Archer Aviation Inc.
- Heat exchanger for gas turbine engines13 Aug 2026US 2026/0235074 A1GE Avio S. r. l.
Most cited
By later US patents
- Cooling air cooler for a gas turbofan engine192US 4,254,618 AGeneral Electric Company · 1981
- Gas turbine engine fan cooled heat exchanger161US 5,269,135 AGeneral Electric Company · 1993
- Load bearing element and a method for manufacturing a load bearing element119US 10,081,431 B2Airbus Operations GmbH · 2018
- System and method of providing clean filtered cooling air to a hot portion of a gas turbine engine114US 5,918,458 AGeneral Electric Company · 1999
- Heat exchange arrangement in a gas turbine engine fan duct for cooling hot bleed air96US 5,203,163 AGeneral Electric Company · 1993