F28D 15/04
With tubes having a capillary structure
Official title: with tubes having a capillary structure
F28D15/04 (With tubes having a capillary structure) appears on 1,755 US grants and 2,549 published applications in this corpus.
Search patents in F28D- Granted patents
- 1,755
- Published applications
- 2,549
- Assignees
- 779
- Inventors
- 3,678
- Latest grant
- 6 Oct 2026
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1976 | 6 | 0 |
| 1977 | 21 | 0 |
| 1978 | 14 | 0 |
| 1979 | 1 | 0 |
| 1980 | 7 | 0 |
| 1981 | 9 | 0 |
| 1982 | 14 | 0 |
| 1983 | 8 | 0 |
| 1984 | 8 | 0 |
| 1985 | 11 | 0 |
| 1986 | 8 | 0 |
| 1987 | 12 | 0 |
| 1988 | 9 | 0 |
| 1989 | 21 | 0 |
| 1990 | 18 | 0 |
| 1991 | 15 | 0 |
| 1992 | 6 | 0 |
| 1993 | 15 | 0 |
| 1994 | 18 | 0 |
| 1995 | 5 | 0 |
| 1996 | 9 | 0 |
| 1997 | 11 | 0 |
| 1998 | 13 | 0 |
| 1999 | 8 | 0 |
| 2000 | 10 | 0 |
| 2001 | 19 | 4 |
| 2002 | 20 | 21 |
| 2003 | 18 | 36 |
| 2004 | 24 | 38 |
| 2005 | 31 | 83 |
| 2006 | 59 | 89 |
| 2007 | 26 | 100 |
| 2008 | 23 | 58 |
| 2009 | 28 | 68 |
| 2010 | 40 | 95 |
| 2011 | 27 | 102 |
| 2012 | 23 | 79 |
| 2013 | 36 | 108 |
| 2014 | 41 | 90 |
| 2015 | 50 | 102 |
| 2016 | 57 | 101 |
| 2017 | 59 | 110 |
| 2018 | 84 | 116 |
| 2019 | 105 | 157 |
| 2020 | 105 | 192 |
| 2021 | 111 | 142 |
| 2022 | 101 | 155 |
| 2023 | 108 | 144 |
| 2024 | 106 | 129 |
| 2025 | 98 | 137 |
| 2026 | 79 | 93 |
By publication year. Applications have been published since 2001. 2026 runs to 8 Oct.
Subgroups
Granted patents
Recent patents
- Connector apparatus for electric charging cable6 Oct 2026US 12,755,866 B2The Board of Regents of the University of Oklahoma
- Main body sheet for vapor chamber, vapor chamber, and electronic apparatus6 Oct 2026US 12,757,355 B2Dai Nippon Printing Co.Ltd.
- Loop heat pipe for staged reentry spacecraft29 Sep 2026US 12,747,038 B1The United States of America as represented by the Secretary of the Air Force
- Heat pipe thermal expansion modification29 Sep 2026US 12,747,916 B2Westinghouse Electric Corp.
- Vapor chamber having a reservoir15 Sep 2026US 12,736,291 B2Razer (Asia-Pacific) Pte. Ltd.
- Oscillating heat pipe with biphilic fluid channels24 Sep 2026US 2026/0287269 A1Raytheon Company
- Heat pipe24 Sep 2026US 2026/0287270 A1Fujikura Ltd.
- Vapor chamber supporting capillary structure24 Sep 2026US 2026/0287271 A1Nidec Chaun-Choung Technology Corporation
- Oscillating heat pipes operable within high gravity force equivalent (g-force) environments24 Sep 2026US 2026/0287272 A1Raytheon Company
- Wick structure for thin heatpipes24 Sep 2026US 2026/0287273 A1Dell Products L. P.
Most cited
By later US patents
- Selectively cooled or heated seat construction and apparatus for providing temperature conditioned fluid and method therefor168US 5,117,638 A1992
- Cooling device with heat pipe167US 6,082,443 AFurukawa Electric Co., Ltd. · 2000
- LED backlight unit including cooling structure149US 7,284,874 B2LG. Philips LCD Co., Ltd. · 2007
- Method and means for improved heat removal in compact semiconductor integrated circuits and similar devices utilizing coolant chambers and microscopic channels138US 4,450,472 AThe Board of Trustees of the Leland Stanford Junior University · 1984
- Sintered grooved wicks125US 4,274,479 AThermacore, Inc. · 1981