F28F 13/02
Arrangements for modifying heat-transfer: by influencing fluid boundary
Official title: by influencing fluid boundary (boundary-layer control in general F15D)
F28F13/02 (Arrangements for modifying heat-transfer: by influencing fluid boundary) appears on 241 US grants and 217 published applications in this corpus.
Search patents in F28F- Granted patents
- 241
- Published applications
- 217
- Assignees
- 177
- Inventors
- 555
- Latest grant
- 18 Aug 2026
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1977 | 1 | 0 |
| 1978 | 2 | 0 |
| 1979 | 0 | 0 |
| 1980 | 3 | 0 |
| 1981 | 1 | 0 |
| 1982 | 2 | 0 |
| 1983 | 2 | 0 |
| 1984 | 2 | 0 |
| 1985 | 2 | 0 |
| 1986 | 1 | 0 |
| 1987 | 8 | 0 |
| 1988 | 4 | 0 |
| 1989 | 3 | 0 |
| 1990 | 1 | 0 |
| 1991 | 3 | 0 |
| 1992 | 1 | 0 |
| 1993 | 4 | 0 |
| 1994 | 8 | 0 |
| 1995 | 3 | 0 |
| 1996 | 5 | 0 |
| 1997 | 2 | 0 |
| 1998 | 6 | 0 |
| 1999 | 8 | 0 |
| 2000 | 10 | 0 |
| 2001 | 5 | 0 |
| 2002 | 5 | 2 |
| 2003 | 5 | 10 |
| 2004 | 3 | 2 |
| 2005 | 3 | 9 |
| 2006 | 7 | 6 |
| 2007 | 2 | 11 |
| 2008 | 1 | 11 |
| 2009 | 2 | 12 |
| 2010 | 2 | 10 |
| 2011 | 10 | 5 |
| 2012 | 8 | 11 |
| 2013 | 5 | 9 |
| 2014 | 7 | 6 |
| 2015 | 6 | 11 |
| 2016 | 5 | 21 |
| 2017 | 8 | 13 |
| 2018 | 7 | 8 |
| 2019 | 12 | 8 |
| 2020 | 12 | 11 |
| 2021 | 7 | 11 |
| 2022 | 8 | 7 |
| 2023 | 6 | 10 |
| 2024 | 11 | 7 |
| 2025 | 10 | 4 |
| 2026 | 2 | 2 |
By publication year. Applications have been published since 2001. 2026 runs to 8 Oct.
Recent patents
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- Radiative cooling device and radiative cooling method21 Oct 2025US 12,447,716 B2Osaka Gas Co., Ltd.
- Redundant heat sink module30 Sep 2025US 12,429,262 B2Ebullient, Inc.
- Multi-directional vibrating protrusion cooling systems11 Jun 2026US 2026/0160506 A1Toyota Jidosha Kabushiki Kaisha
- Cooler and cooling device5 Feb 2026US 2026/0036377 A1Kyushu University, National University Corporation
- Fluid distribution unit for two-phase cooling system25 Dec 2025US 2025/0389464 A1Ebullient, Inc.
- A heat exchanger and a method of producing a matrix for a recuperative heat exchanger5 Jun 2025US 2025/0180301 A1Teknologian tutkimuskeskus VTT Oy
- Refrigerant management in hvac systems13 Mar 2025US 2025/0085035 A1Trane International Inc.
Most cited
By later US patents
- Synthetic jet actuator and applications thereof162US 5,758,823 AGeorgia Tech Research Corporation · 1998
- Synthetic jet actuators for cooling heated bodies and environments132US 6,123,145 AGeorgia Tech Research Corporation · 2000
- Convection transfer system120US 5,310,440 AInternational Business Machines Corporation · 1994
- Scaled heat transfer surface with protruding ramp surface turbulators108US 5,361,828 AGeneral Electric Company · 1994
- Enhanced impingement cooled components99US 5,353,865 AGeneral Electric Company · 1994