F28D 9/0018
Without any annular circulation of the heat exchange media
Official title: {without any annular circulation of the heat exchange media}
F28D9/0018 (Without any annular circulation of the heat exchange media) appears on 127 US grants and 83 published applications in this corpus.
Search patents in F28D- Granted patents
- 127
- Published applications
- 83
- Assignees
- 81
- Inventors
- 250
- Latest grant
- 11 Aug 2026
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1978 | 2 | 0 |
| 1979 | 1 | 0 |
| 1980 | 2 | 0 |
| 1981 | 1 | 0 |
| 1982 | 2 | 0 |
| 1983 | 4 | 0 |
| 1984 | 4 | 0 |
| 1985 | 5 | 0 |
| 1986 | 2 | 0 |
| 1987 | 1 | 0 |
| 1988 | 1 | 0 |
| 1989 | 2 | 0 |
| 1990 | 0 | 0 |
| 1991 | 4 | 0 |
| 1992 | 4 | 0 |
| 1993 | 0 | 0 |
| 1994 | 1 | 0 |
| 1995 | 4 | 0 |
| 1996 | 1 | 0 |
| 1997 | 0 | 0 |
| 1998 | 0 | 0 |
| 1999 | 2 | 0 |
| 2000 | 5 | 0 |
| 2001 | 6 | 1 |
| 2002 | 3 | 6 |
| 2003 | 3 | 6 |
| 2004 | 4 | 1 |
| 2005 | 5 | 4 |
| 2006 | 3 | 3 |
| 2007 | 1 | 2 |
| 2008 | 2 | 2 |
| 2009 | 0 | 0 |
| 2010 | 2 | 6 |
| 2011 | 2 | 4 |
| 2012 | 0 | 9 |
| 2013 | 5 | 1 |
| 2014 | 3 | 1 |
| 2015 | 3 | 3 |
| 2016 | 7 | 6 |
| 2017 | 2 | 6 |
| 2018 | 6 | 6 |
| 2019 | 2 | 3 |
| 2020 | 6 | 1 |
| 2021 | 2 | 2 |
| 2022 | 2 | 2 |
| 2023 | 3 | 3 |
| 2024 | 1 | 3 |
| 2025 | 5 | 1 |
| 2026 | 1 | 1 |
By publication year. Applications have been published since 2001. 2026 runs to 8 Oct.
Recent patents
- Aircraft heat exchangers and plates11 Aug 2026US 12,704,330 B2Rtx Corporation
- Flexural support for heat exchanger cores2 Dec 2025US 12,487,037 B2Hamilton Sundstrand Corporation
- Compact radial condenser18 Nov 2025US 12,474,095 B2B/E Aerospace, Inc.
- Conformal heat exchanger13 May 2025US 12,298,080 B2Rtx Corporation
- Nacelle of an aircraft engine, comprising an improved heat exchanger7 Jan 2025US 12,188,362 B2Airbus Operations GmbH
- Variable length fin heat exchanger and corresponding turbomachine8 Jan 2026US 2026/0009598 A1Safran
- Conformal heat exchanger28 Aug 2025US 2025/0271217 A1Rtx Corporation
- Compact radial condenser6 Jun 2024US 2024/0183589 A1B/E Aerospace, Inc.
- Nacelle of an aircraft engine, comprising an improved heat exchanger29 Feb 2024US 2024/0068381 A1Airbus Operations GmbH
- Flexural support for heat exchanger cores8 Feb 2024US 2024/0044590 A1Hamilton Sundstrand Corporation
Most cited
By later US patents
- Integrated fuel reformation and thermal management system for solid oxide fuel cell systems120US 6,485,852 B1Delphi Technologies, Inc. · 2002
- Turbine engine with intercooler in bypass air passage118US 6,134,880 AConcepts ETI, Inc. · 2000
- Stirling engine having platelet heat exchanging elements59US 6,513,326 B12003
- Tapered plate annular heat exchanger55US 4,438,809 A1984
- Gas turbine engine with recuperator55US 5,855,112 AHonda Giken Kogyo Kabushiki Kaisha · 1999