F28F 13/12
By creating turbulence
Official title: by creating turbulence, e.g. by stirring, by increasing the force of circulation (F28F13/08 takes precedence)
F28F13/12 (By creating turbulence) appears on 823 US grants and 975 published applications in this corpus.
Search patents in F28F- Granted patents
- 823
- Published applications
- 975
- Assignees
- 623
- Inventors
- 2,368
- Latest grant
- 29 Sep 2026
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1976 | 5 | 0 |
| 1977 | 5 | 0 |
| 1978 | 5 | 0 |
| 1979 | 2 | 0 |
| 1980 | 5 | 0 |
| 1981 | 9 | 0 |
| 1982 | 6 | 0 |
| 1983 | 4 | 0 |
| 1984 | 9 | 0 |
| 1985 | 6 | 0 |
| 1986 | 6 | 0 |
| 1987 | 14 | 0 |
| 1988 | 5 | 0 |
| 1989 | 16 | 0 |
| 1990 | 7 | 0 |
| 1991 | 14 | 0 |
| 1992 | 9 | 0 |
| 1993 | 6 | 0 |
| 1994 | 17 | 0 |
| 1995 | 6 | 0 |
| 1996 | 5 | 0 |
| 1997 | 5 | 0 |
| 1998 | 15 | 0 |
| 1999 | 9 | 0 |
| 2000 | 10 | 0 |
| 2001 | 8 | 7 |
| 2002 | 12 | 13 |
| 2003 | 13 | 17 |
| 2004 | 12 | 18 |
| 2005 | 12 | 28 |
| 2006 | 13 | 22 |
| 2007 | 13 | 27 |
| 2008 | 9 | 28 |
| 2009 | 9 | 35 |
| 2010 | 9 | 27 |
| 2011 | 10 | 39 |
| 2012 | 13 | 44 |
| 2013 | 20 | 40 |
| 2014 | 13 | 54 |
| 2015 | 23 | 55 |
| 2016 | 26 | 57 |
| 2017 | 36 | 61 |
| 2018 | 50 | 43 |
| 2019 | 50 | 41 |
| 2020 | 36 | 74 |
| 2021 | 51 | 49 |
| 2022 | 48 | 43 |
| 2023 | 30 | 47 |
| 2024 | 51 | 44 |
| 2025 | 35 | 39 |
| 2026 | 21 | 23 |
By publication year. Applications have been published since 2001. 2026 runs to 8 Oct.
Subgroups
Granted patents
Recent patents
- Battery housing part, battery module, and method for producing a battery housing part29 Sep 2026US 12,749,736 B2Robert Bosch GmbH
- Interlocking plate heat exchanger22 Sep 2026US 12,741,309 B2Rtx Corporation
- Advanced disturbance elements for improving pipe performance25 Aug 2026US 12,716,661 B2Valeo Systemes Thermiques
- Internally profiled tubes18 Aug 2026US 12,710,236 B2Paralloy Limited
- Baffle and associated fryer heat exchange system and fryer11 Aug 2026US 12,702,254 B2Illinois Tool Works Inc.
- Heat exchanger with enhanced heat transfer manifold1 Oct 2026US 2026/0298561 A1Rtx Corporation
- Heat exchanger3 Sep 2026US 2026/0259010 A1Komatsu Ltd.
- Electric arrangement, panel and heat exchanger27 Aug 2026US 2026/0251405 A1Hitachi Energy Ltd
- Method for assembling a heat exchanger with coaxial tubing for an air-conditioning circuit of a vehicle30 Jul 2026US 2026/0218987 A1Hutchinson
- Plate heat exchanger comprising a mixing device30 Jul 2026US 2026/0218998 A1Valeo Systemes Thermiques
Most cited
By later US patents
- Compact vacuum insulation176US 5,157,893 AMidwest Research Institute · 1992
- Device and method for cooling multi-chip modules176US 6,351,384 B1Hitachi, Ltd. · 2002
- Compact vacuum insulation174US 5,175,975 AMidwest Research Institute · 1993
- Turbine engine with intercooler in bypass air passage118US 6,134,880 AConcepts ETI, Inc. · 2000
- Scaled heat transfer surface with protruding ramp surface turbulators108US 5,361,828 AGeneral Electric Company · 1994