F28F 1/22
The means having portions engaging further tubular elements
Official title: the means having portions engaging further tubular elements
F28F1/22 (The means having portions engaging further tubular elements) appears on 177 US grants and 209 published applications in this corpus.
Search patents in F28F- Granted patents
- 177
- Published applications
- 209
- Assignees
- 162
- Inventors
- 579
- Latest grant
- 26 May 2026
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1976 | 3 | 0 |
| 1977 | 1 | 0 |
| 1978 | 1 | 0 |
| 1979 | 2 | 0 |
| 1980 | 3 | 0 |
| 1981 | 0 | 0 |
| 1982 | 0 | 0 |
| 1983 | 2 | 0 |
| 1984 | 2 | 0 |
| 1985 | 1 | 0 |
| 1986 | 2 | 0 |
| 1987 | 2 | 0 |
| 1988 | 1 | 0 |
| 1989 | 0 | 0 |
| 1990 | 2 | 0 |
| 1991 | 3 | 0 |
| 1992 | 1 | 0 |
| 1993 | 0 | 0 |
| 1994 | 1 | 0 |
| 1995 | 5 | 0 |
| 1996 | 4 | 0 |
| 1997 | 4 | 0 |
| 1998 | 3 | 0 |
| 1999 | 2 | 0 |
| 2000 | 0 | 0 |
| 2001 | 8 | 1 |
| 2002 | 2 | 1 |
| 2003 | 3 | 5 |
| 2004 | 5 | 12 |
| 2005 | 5 | 5 |
| 2006 | 5 | 3 |
| 2007 | 4 | 9 |
| 2008 | 4 | 19 |
| 2009 | 2 | 12 |
| 2010 | 5 | 13 |
| 2011 | 1 | 9 |
| 2012 | 5 | 6 |
| 2013 | 3 | 6 |
| 2014 | 7 | 7 |
| 2015 | 6 | 7 |
| 2016 | 5 | 16 |
| 2017 | 2 | 9 |
| 2018 | 10 | 6 |
| 2019 | 12 | 12 |
| 2020 | 7 | 3 |
| 2021 | 3 | 12 |
| 2022 | 2 | 13 |
| 2023 | 8 | 9 |
| 2024 | 10 | 6 |
| 2025 | 3 | 5 |
| 2026 | 5 | 3 |
By publication year. Applications have been published since 2001. 2026 runs to 8 Oct.
Recent patents
- Double-tube heat exchanger and manufacturing method therefor26 May 2026US 12,638,241 B2Sumitomo Riko Company Limited
- Extruded connected microtube and heat exchanger14 Apr 2026US 12,601,547 B2Rtx Corporation
- Heat exchanger3 Feb 2026US 12,540,776 B2Sanhua (Hangzhou) Micro Channel Heat Exchanger Co., Ltd.
- Thermal management system for structures6 Jan 2026US 12,516,830 B1
- Heat exchanger and air conditioning system having same6 Jan 2026US 12,516,887 B2Danfoss A/S
- Water cooling radiator with built-in filter30 Apr 2026US 2026/0122841 A1Huizhou Kuertai Technology Co., Ltd.
- Evaporator for ice maker9 Apr 2026US 2026/0098668 A1BLUENIX Co., Ltd.
- Heat exchanger8 Jan 2026US 2026/0009602 A1Denso Corporation
- Temperature control system for controlling the temperature of a sorbent packing for a direct air capture device, sorbent container system comprising the temperature control system and direct air capture device4 Dec 2025US 2025/0367588 A1Volkswagen Aktiengesellschaft
- Photovoltaic and thermal solar panel20 Nov 2025US 2025/0357891 A1Dualsun
Most cited
By later US patents
- Heat management system167US 6,351,381 B1Thermal Corp. · 2002
- Liquid cooled heat sink for cooling electronic components83US 5,829,516 AAavid Thermal Products, Inc. · 1998
- Heat sink with a heat pipe for spreading of heat72US 6,189,601 B1Intel Corporation · 2001
- Modular liquid skin heat exchanger71US 5,667,168 AE-Systems, Inc. · 1997
- Battery heating device and method71US 5,731,568 AArctic Fox, Inc. · 1998