F28D 2021/0049
For lubricants
Official title: {for lubricants, e.g. oil coolers}
F28D2021/0049 (For lubricants) appears on 72 US grants and 94 published applications in this corpus.
Search patents in F28D- Granted patents
- 72
- Published applications
- 94
- Assignees
- 66
- Inventors
- 237
- Latest grant
- 25 Nov 2025
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1977 | 1 | 0 |
| 1978 | 0 | 0 |
| 1979 | 0 | 0 |
| 1980 | 0 | 0 |
| 1981 | 0 | 0 |
| 1982 | 0 | 0 |
| 1983 | 0 | 0 |
| 1984 | 0 | 0 |
| 1985 | 0 | 0 |
| 1986 | 0 | 0 |
| 1987 | 0 | 0 |
| 1988 | 1 | 0 |
| 1989 | 0 | 0 |
| 1990 | 1 | 0 |
| 1991 | 1 | 0 |
| 1992 | 0 | 0 |
| 1993 | 1 | 0 |
| 1994 | 0 | 0 |
| 1995 | 0 | 0 |
| 1996 | 0 | 0 |
| 1997 | 1 | 0 |
| 1998 | 1 | 0 |
| 1999 | 1 | 0 |
| 2000 | 1 | 0 |
| 2001 | 1 | 0 |
| 2002 | 0 | 0 |
| 2003 | 0 | 3 |
| 2004 | 1 | 1 |
| 2005 | 0 | 1 |
| 2006 | 0 | 3 |
| 2007 | 2 | 3 |
| 2008 | 1 | 1 |
| 2009 | 0 | 12 |
| 2010 | 0 | 6 |
| 2011 | 4 | 5 |
| 2012 | 1 | 2 |
| 2013 | 6 | 2 |
| 2014 | 1 | 2 |
| 2015 | 2 | 10 |
| 2016 | 3 | 8 |
| 2017 | 9 | 6 |
| 2018 | 4 | 7 |
| 2019 | 7 | 2 |
| 2020 | 3 | 6 |
| 2021 | 4 | 5 |
| 2022 | 6 | 3 |
| 2023 | 3 | 3 |
| 2024 | 3 | 1 |
| 2025 | 2 | 1 |
| 2026 | 0 | 1 |
By publication year. Applications have been published since 2001. 2026 runs to 8 Oct.
Recent patents
- Heat exchanger25 Nov 2025US 12,480,715 B2Mahle International GmbH
- Cooler with fan housing comprising recess for control unit21 Oct 2025US 12,449,200 B2
- Heat exchanger with curved core area and intended for use with an agricultural pumper truck2 Jul 2024US 12,025,379 B2Air Power Systems Co., Inc.
- Heat exchanger, tank for heat exchanger, and method of making the same14 May 2024US 11,982,492 B2Modine Manufacturing Company
- Optimised heat exchange system of a turbomachine6 Feb 2024US 11,891,955 B2Safran
- Oil cooler2 Jul 2026US 2026/0185781 A1Mahle Filter Systems Japan Corporation
- The system and the method for recovery of waste heat energy contained in oil in an oil-cooled air compressor13 Mar 2025US 2025/0085064 A1Asfi SpóLka Z O.O.
- Cooler mount arrangement for gas compressors8 Feb 2024US 2024/0044341 A1Sullair Corporation
- Cooler9 Nov 2023US 2023/0358476 A1
- Heat exchanger19 Oct 2023US 2023/0332837 A1Mahle Filter Systems Japan Corporation
Most cited
By later US patents
- Heat exchanger of plate fin type77US 4,729,428 AShowa Aluminum Corporation · 1988
- Method and apparatus for operating gas turbine engine heat exchangers71US 8,387,362 B22013
- Integral radiator hose and oil cooler26US 4,893,670 AGeneral Motors Corporation · 1990
- Dual channel regulated fuel-oil heat exchanger22US 7,997,062 B2Pratt & Whitney Canada Corp. · 2011
- Heat exchanger for aircraft engine20US 9,732,702 B2Sumitomo Precision Products Co., Ltd. · 2017