F28D 1/0477
The conduits being bent in a serpentine or zig-zag
Official title: {the conduits being bent in a serpentine or zig-zag}
F28D1/0477 (The conduits being bent in a serpentine or zig-zag) appears on 657 US grants and 882 published applications in this corpus.
Search patents in F28D- Granted patents
- 657
- Published applications
- 882
- Assignees
- 390
- Inventors
- 2,067
- Latest grant
- 25 Aug 2026
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1976 | 2 | 0 |
| 1977 | 0 | 0 |
| 1978 | 0 | 0 |
| 1979 | 1 | 0 |
| 1980 | 1 | 0 |
| 1981 | 5 | 0 |
| 1982 | 4 | 0 |
| 1983 | 3 | 0 |
| 1984 | 4 | 0 |
| 1985 | 5 | 0 |
| 1986 | 8 | 0 |
| 1987 | 5 | 0 |
| 1988 | 4 | 0 |
| 1989 | 2 | 0 |
| 1990 | 6 | 0 |
| 1991 | 10 | 0 |
| 1992 | 6 | 0 |
| 1993 | 8 | 0 |
| 1994 | 6 | 0 |
| 1995 | 4 | 0 |
| 1996 | 5 | 0 |
| 1997 | 8 | 0 |
| 1998 | 5 | 0 |
| 1999 | 6 | 0 |
| 2000 | 6 | 0 |
| 2001 | 10 | 3 |
| 2002 | 11 | 9 |
| 2003 | 12 | 19 |
| 2004 | 13 | 30 |
| 2005 | 14 | 33 |
| 2006 | 26 | 15 |
| 2007 | 14 | 32 |
| 2008 | 7 | 26 |
| 2009 | 6 | 22 |
| 2010 | 8 | 31 |
| 2011 | 6 | 31 |
| 2012 | 8 | 33 |
| 2013 | 12 | 34 |
| 2014 | 13 | 34 |
| 2015 | 19 | 34 |
| 2016 | 21 | 55 |
| 2017 | 22 | 40 |
| 2018 | 43 | 56 |
| 2019 | 37 | 51 |
| 2020 | 41 | 52 |
| 2021 | 41 | 37 |
| 2022 | 39 | 39 |
| 2023 | 31 | 44 |
| 2024 | 32 | 53 |
| 2025 | 41 | 36 |
| 2026 | 16 | 33 |
By publication year. Applications have been published since 2001. 2026 runs to 8 Oct.
Subgroups
Granted patents
Recent patents
- Liquid collector25 Aug 2026US 12,714,959 B2Baltimore Aircoil Company, Inc.
- Heat exchanger turnaround section18 Aug 2026US 12,710,240 B2Hamilton Sundstrand Corporation
- Baffle and associated fryer heat exchange system and fryer11 Aug 2026US 12,702,254 B2Illinois Tool Works Inc.
- Water heaters with computing elements as a network11 Aug 2026US 12,704,888 B2
- Battery pack and a method of manufacturing a battery pack16 Jun 2026US 12,658,502 B2Xerotech Limited
- Fin, heat exchanger and water heater3 Sep 2026US 2026/0259013 A1Guangdong Midea Kitchen and Bath Appliances Mfg. Co., Ltd.
- Wastewater heat exchanger27 Aug 2026US 2026/0251411 A1
- A cooling appliance having an evaporator assembly20 Aug 2026US 2026/0243493 A1BSH Hausgeräte GmbH
- Thermal regulation device for cooling electrical energy storage members20 Aug 2026US 2026/0246014 A1Valeo Systemes Thermiques
- Serpentine heat exchanger6 Aug 2026US 2026/0227132 A1LG Electronics Inc.
Most cited
By later US patents
- CPU cooling system192US 6,166,907 A2000
- Heat exchanger141US 6,964,296 B2Modine Manufacturing Company · 2005
- Modular pumping unit(s) facilitating cooling of electronic system(s)90US 9,273,906 B2International Business Machines Corporation · 2016
- Heat exchange system and method of use61US 6,772,829 B22004
- Flat, multi-luminal tube for cross-flow-type indirect heat exchanger, having greater outer wall thickness towards side externally subject to corrosive inlet gas such as wet, salty air60US 4,570,700 ANippondenso Co., Ltd. · 1986