F28F 3/048
In the form of ribs integral with the element or local variations
Official title: {in the form of ribs integral with the element or local variations in thickness of the element, e.g. grooves, microchannels}
F28F3/048 (In the form of ribs integral with the element or local variations) appears on 473 US grants and 690 published applications in this corpus.
Search patents in F28F- Granted patents
- 473
- Published applications
- 690
- Assignees
- 410
- Inventors
- 1,586
- Latest grant
- 6 Oct 2026
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1982 | 1 | 0 |
| 1983 | 4 | 0 |
| 1984 | 3 | 0 |
| 1985 | 0 | 0 |
| 1986 | 0 | 0 |
| 1987 | 0 | 0 |
| 1988 | 4 | 0 |
| 1989 | 1 | 0 |
| 1990 | 2 | 0 |
| 1991 | 3 | 0 |
| 1992 | 1 | 0 |
| 1993 | 0 | 0 |
| 1994 | 1 | 0 |
| 1995 | 3 | 0 |
| 1996 | 4 | 0 |
| 1997 | 1 | 0 |
| 1998 | 11 | 0 |
| 1999 | 6 | 0 |
| 2000 | 9 | 0 |
| 2001 | 6 | 5 |
| 2002 | 6 | 7 |
| 2003 | 6 | 10 |
| 2004 | 5 | 14 |
| 2005 | 7 | 12 |
| 2006 | 14 | 18 |
| 2007 | 8 | 24 |
| 2008 | 2 | 17 |
| 2009 | 9 | 28 |
| 2010 | 10 | 22 |
| 2011 | 10 | 19 |
| 2012 | 14 | 30 |
| 2013 | 12 | 18 |
| 2014 | 10 | 33 |
| 2015 | 20 | 28 |
| 2016 | 17 | 33 |
| 2017 | 15 | 29 |
| 2018 | 18 | 35 |
| 2019 | 40 | 42 |
| 2020 | 29 | 43 |
| 2021 | 28 | 42 |
| 2022 | 25 | 47 |
| 2023 | 28 | 43 |
| 2024 | 37 | 34 |
| 2025 | 33 | 29 |
| 2026 | 10 | 28 |
By publication year. Applications have been published since 2001. 2026 runs to 8 Oct.
Recent patents
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- Printed circuit-type heat exchanger having integral structure19 May 2026US 12,631,404 B2Doosan Enerbility Co., Ltd.
- Microchannel heat exchanger24 Mar 2026US 12,584,693 B2Kobe Steel, Ltd.
- Electronic device comprising structures for dispersing heat27 Aug 2026US 2026/0255545 A1Samsung Electronics Co., Ltd.
- Finned cold plate with multiple flow paths20 Aug 2026US 2026/0247567 A1AMD Design, LLC
- Additively manufactured parts and structures with fins and methods of manufacturing the same6 Aug 2026US 2026/0225177 A1Blue Origin Manufacturing, LLC
- A plate heat exchanger, a heat exchanging plate and a method of treating a feed such as sea water6 Aug 2026US 2026/0225920 A1Alfa Laval Corporate AB
- Printed circuit heat exchanger and methods of fabricating same30 Jul 2026US 2026/0216815 A1GE Vernova Infrastructure Technology LLC
Most cited
By later US patents
- Micro miniature refrigerators142US 4,392,362 AThe Board of Trustees of the Leland Stanford Junior University · 1983
- Method and apparatus for achieving temperature uniformity and hot spot cooling in a heat producing device135US 7,104,312 B2Cooligy, Inc. · 2006
- Plastic platelet fuel cells employing integrated fluid management91US 5,863,671 AH Power Corporation · 1999
- Microchanneled active fluid heat exchanger method75US 6,381,846 B23M Innovative Properties Company · 2002
- Air cooled heat exchanger for multi-chip assemblies70US 5,168,919 ADigital Equipment Corporation · 1992