F28F 13/00
Arrangements for modifying heat-transfer
Official title: Arrangements for modifying heat-transfer, e.g. increasing, decreasing (F28F1/00 - F28F11/00 take precedence)
F28F13/00 (Arrangements for modifying heat-transfer) appears on 4,360 US grants and 5,024 published applications in this corpus.
Search patents in F28F- Granted patents
- 4,360
- Published applications
- 5,024
- Assignees
- 2,391
- Inventors
- 11,174
- Latest grant
- 6 Oct 2026
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1976 | 22 | 0 |
| 1977 | 23 | 0 |
| 1978 | 30 | 0 |
| 1979 | 23 | 0 |
| 1980 | 43 | 0 |
| 1981 | 34 | 0 |
| 1982 | 40 | 0 |
| 1983 | 29 | 0 |
| 1984 | 31 | 0 |
| 1985 | 24 | 0 |
| 1986 | 25 | 0 |
| 1987 | 47 | 0 |
| 1988 | 40 | 0 |
| 1989 | 54 | 0 |
| 1990 | 29 | 0 |
| 1991 | 46 | 0 |
| 1992 | 46 | 0 |
| 1993 | 34 | 0 |
| 1994 | 66 | 0 |
| 1995 | 40 | 0 |
| 1996 | 45 | 0 |
| 1997 | 44 | 0 |
| 1998 | 67 | 0 |
| 1999 | 57 | 0 |
| 2000 | 78 | 0 |
| 2001 | 64 | 34 |
| 2002 | 79 | 84 |
| 2003 | 78 | 137 |
| 2004 | 73 | 122 |
| 2005 | 78 | 153 |
| 2006 | 94 | 113 |
| 2007 | 76 | 168 |
| 2008 | 57 | 167 |
| 2009 | 57 | 196 |
| 2010 | 78 | 251 |
| 2011 | 90 | 191 |
| 2012 | 95 | 205 |
| 2013 | 119 | 214 |
| 2014 | 106 | 239 |
| 2015 | 132 | 260 |
| 2016 | 148 | 295 |
| 2017 | 184 | 309 |
| 2018 | 206 | 262 |
| 2019 | 266 | 231 |
| 2020 | 261 | 292 |
| 2021 | 200 | 233 |
| 2022 | 201 | 233 |
| 2023 | 168 | 211 |
| 2024 | 181 | 175 |
| 2025 | 173 | 146 |
| 2026 | 79 | 103 |
By publication year. Applications have been published since 2001. 2026 runs to 8 Oct.
Subgroups
Granted patents
- F28F 13/06Arrangements for modifying heat-transfer: by affecting the pattern of flow of the1,955
- F28F 13/18Arrangements for modifying heat-transfer: by applying coatings909
- F28F 2013/005Thermal jointsIndexing code485
- F28F 13/003Arrangements for modifying heat-transfer: by using permeable mass, perforated or porous materials446
- F28F 13/02Arrangements for modifying heat-transfer: by influencing fluid boundary241
- F28F 13/14Arrangements for modifying heat-transfer: by endowing the walls of conduits with zones123
- F28F 13/16Arrangements for modifying heat-transfer: by applying an electrostatic field to the body104
- F28F 2013/001Particular heat conductive materialsIndexing code85
Recent patents
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Most cited
By later US patents
- Apparatus for absorbing and dissipating excess heat generated by a system553US 7,593,230 B2Sensys Medical, Inc. · 2009
- Thermal transfer coating486US 7,695,808 B23M Innovative Properties Company · 2010
- Method and apparatus for in situ gasification of coal and the commercial products derived therefrom276US 3,952,802 AIn Situ Technology, Inc. · 1976
- Method for photocatalytically rendering a surface of a substrate superhydrophilic, a substrate with superhydrophilic photocatalytic surface, and method of making thereof243US 6,013,372 AToto Ltd. · 2000
- Integrated multilayered microfludic devices and methods for making the same242US 6,572,830 B1Motorola, Inc. · 2003