F28D 7/08
The conduits being otherwise bent
Official title: the conduits being otherwise bent, e.g. in a serpentine or zig-zag (F28D7/10 takes precedence){(F28D7/0016 and F28D7/0033 take precedence)}
F28D7/08 (The conduits being otherwise bent) appears on 485 US grants and 493 published applications in this corpus.
Search patents in F28D- Granted patents
- 485
- Published applications
- 493
- Assignees
- 338
- Inventors
- 1,123
- Latest grant
- 18 Aug 2026
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1976 | 2 | 0 |
| 1977 | 1 | 0 |
| 1978 | 5 | 0 |
| 1979 | 2 | 0 |
| 1980 | 7 | 0 |
| 1981 | 6 | 0 |
| 1982 | 8 | 0 |
| 1983 | 5 | 0 |
| 1984 | 6 | 0 |
| 1985 | 10 | 0 |
| 1986 | 5 | 0 |
| 1987 | 7 | 0 |
| 1988 | 10 | 0 |
| 1989 | 4 | 0 |
| 1990 | 6 | 0 |
| 1991 | 4 | 0 |
| 1992 | 5 | 0 |
| 1993 | 4 | 0 |
| 1994 | 6 | 0 |
| 1995 | 3 | 0 |
| 1996 | 3 | 0 |
| 1997 | 2 | 0 |
| 1998 | 5 | 0 |
| 1999 | 10 | 0 |
| 2000 | 5 | 0 |
| 2001 | 4 | 1 |
| 2002 | 5 | 1 |
| 2003 | 6 | 9 |
| 2004 | 3 | 13 |
| 2005 | 5 | 10 |
| 2006 | 5 | 13 |
| 2007 | 9 | 16 |
| 2008 | 9 | 29 |
| 2009 | 10 | 5 |
| 2010 | 9 | 26 |
| 2011 | 13 | 11 |
| 2012 | 9 | 14 |
| 2013 | 6 | 20 |
| 2014 | 9 | 27 |
| 2015 | 18 | 20 |
| 2016 | 14 | 38 |
| 2017 | 19 | 29 |
| 2018 | 24 | 30 |
| 2019 | 34 | 37 |
| 2020 | 19 | 21 |
| 2021 | 29 | 28 |
| 2022 | 27 | 31 |
| 2023 | 22 | 20 |
| 2024 | 24 | 20 |
| 2025 | 20 | 12 |
| 2026 | 2 | 12 |
By publication year. Applications have been published since 2001. 2026 runs to 8 Oct.
Subgroups
Granted patents
Recent patents
- Heat exchanger turnaround section18 Aug 2026US 12,710,240 B2Hamilton Sundstrand Corporation
- Modular heater cooler with disposable heat transfer fluid circuit11 Aug 2026US 12,702,735 B2LivaNova Deutschland GmbH
- Battery fire suppression system with fire extinguishing agent cooling function9 Dec 2025US 12,491,394 B2Ankug Engineering Co., Ltd.
- Triple-flow axial turbomachine comprising a diverging heat exchanger in the third flow25 Nov 2025US 12,480,440 B2Safran Aero Boosters SA
- Apparatus for tracking a pig18 Nov 2025US 12,474,009 B2Cokebusters Ltd.
- Economizers for waste heat recovery systems27 Aug 2026US 2026/0251406 A1Scope Technology and Manufacturing, LLC
- Wastewater heat exchanger27 Aug 2026US 2026/0251411 A1
- Heat exchanger and method for operating a heat exchanger30 Jul 2026US 2026/0218992 A1Huber SE
- Multitubular heat exchanger11 Jun 2026US 2026/0160504 A1Yanmar Holdings Co., Ltd.
- Heating, ventilation, and air conditoining with thermal energy storage28 May 2026US 2026/0146759 A1Carrier Corporation
Most cited
By later US patents
- Heat exchanger for fuel cell power plant reformer108US 4,781,241 AInternational Fuel Cells Corporation · 1988
- Oil-fired frac water heater92US 8,534,235 B22013
- Microwave purification process91US 7,905,942 B1SDCmaterials, Inc. · 2011
- Liquid over-feeding air conditioning system and method68US 5,245,833 AMartin Marietta Energy Systems, Inc. · 1993
- Method and apparatus for making recyclable catalysts66US 8,076,258 B1SDCmaterials, Inc. · 2011