F28F 2009/029
With increasing or decreasing cross-section
Official title: {with increasing or decreasing cross-section, e.g. having conical shape}
F28F2009/029 (With increasing or decreasing cross-section) appears on 119 US grants and 165 published applications in this corpus.
Search patents in F28F- Granted patents
- 119
- Published applications
- 165
- Assignees
- 92
- Inventors
- 437
- Latest grant
- 11 Aug 2026
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1987 | 1 | 0 |
| 1988 | 0 | 0 |
| 1989 | 0 | 0 |
| 1990 | 0 | 0 |
| 1991 | 0 | 0 |
| 1992 | 1 | 0 |
| 1993 | 1 | 0 |
| 1994 | 2 | 0 |
| 1995 | 0 | 0 |
| 1996 | 0 | 0 |
| 1997 | 0 | 0 |
| 1998 | 1 | 0 |
| 1999 | 1 | 0 |
| 2000 | 0 | 0 |
| 2001 | 1 | 1 |
| 2002 | 2 | 5 |
| 2003 | 1 | 6 |
| 2004 | 2 | 2 |
| 2005 | 2 | 3 |
| 2006 | 5 | 4 |
| 2007 | 3 | 5 |
| 2008 | 1 | 3 |
| 2009 | 2 | 6 |
| 2010 | 1 | 4 |
| 2011 | 4 | 4 |
| 2012 | 1 | 4 |
| 2013 | 1 | 8 |
| 2014 | 1 | 10 |
| 2015 | 4 | 12 |
| 2016 | 8 | 10 |
| 2017 | 5 | 15 |
| 2018 | 9 | 5 |
| 2019 | 12 | 13 |
| 2020 | 7 | 12 |
| 2021 | 10 | 11 |
| 2022 | 8 | 6 |
| 2023 | 11 | 6 |
| 2024 | 3 | 6 |
| 2025 | 7 | 3 |
| 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
- Liquid cooling device with a heat-resisting structure16 Sep 2025US 12,419,011 B2
- Shuttle kiln exhaust configuration19 Aug 2025US 12,392,556 B2Corning Incorporated
- Integrated radial diffuser with movable diffuser hub10 Jun 2025US 12,326,162 B2Hamilton Sundstrand Corporation
- Hemofilter for in vivo blood filtration3 Jun 2025US 12,318,522 B2The Regents of the University of California
- Stress optimized conformal weave header geometry11 Jun 2026US 2026/0160505 A1Hamilton Sundstrand Corporation
- Improved heat exchanger device for an aircraft turbomachine13 Nov 2025US 2025/0347475 A1Safran
- Contoured inlet manifold for subfreezing heat exchanger30 Oct 2025US 2025/0334354 A1Hamilton Sundstrand Corporation
- Heat exchanger, in particular shell-and-tube heat exchanger, for arrangement in a rotor having an axis of rotation9 Jan 2025US 2025/0012511 A1Ecop Technologies GmbH
- Hemofilter For In Vivo Blood Filtration5 Dec 2024US 2024/0399041 A1The Regents of the University of California
Most cited
By later US patents
- Gas turbine engine with air/fuel heat exchanger50US 9,771,867 B2Rolls-Royce North American Technologies Inc. · 2017
- High temperature thermal energy exchange system with horizontal heat exchange chamber and method for exchanging thermal energy by using the high temperature thermal energy exchange system40US 10,563,927 B2Siemens Gamesa Renewable Energy A/S · 2020
- Lightweight, compact heat exchanger37US 4,681,155 AThe Garrett Corporation · 1987
- Heat exchanger having several exchanging portions37US 5,992,514 ADenso Corporation · 1999
- Exhaust heat exchanger32US 6,269,870 B1Behr GmbH & Co. · 2001