F04B 39/06
Cooling
Official title: Cooling; Heating; Prevention of freezing
F04B39/06 (Cooling) appears on 708 US grants and 816 published applications in this corpus.
Search patents in F04B- Granted patents
- 708
- Published applications
- 816
- Assignees
- 394
- Inventors
- 1,641
- Latest grant
- 29 Sep 2026
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1976 | 6 | 0 |
| 1977 | 3 | 0 |
| 1978 | 4 | 0 |
| 1979 | 1 | 0 |
| 1980 | 6 | 0 |
| 1981 | 2 | 0 |
| 1982 | 1 | 0 |
| 1983 | 5 | 0 |
| 1984 | 3 | 0 |
| 1985 | 6 | 0 |
| 1986 | 1 | 0 |
| 1987 | 1 | 0 |
| 1988 | 3 | 0 |
| 1989 | 4 | 0 |
| 1990 | 4 | 0 |
| 1991 | 3 | 0 |
| 1992 | 6 | 0 |
| 1993 | 11 | 0 |
| 1994 | 3 | 0 |
| 1995 | 3 | 0 |
| 1996 | 2 | 0 |
| 1997 | 7 | 0 |
| 1998 | 7 | 0 |
| 1999 | 4 | 0 |
| 2000 | 14 | 0 |
| 2001 | 17 | 9 |
| 2002 | 10 | 7 |
| 2003 | 15 | 16 |
| 2004 | 7 | 15 |
| 2005 | 9 | 13 |
| 2006 | 10 | 19 |
| 2007 | 5 | 9 |
| 2008 | 0 | 14 |
| 2009 | 3 | 16 |
| 2010 | 4 | 17 |
| 2011 | 8 | 25 |
| 2012 | 18 | 26 |
| 2013 | 13 | 47 |
| 2014 | 29 | 35 |
| 2015 | 25 | 52 |
| 2016 | 31 | 31 |
| 2017 | 22 | 43 |
| 2018 | 38 | 45 |
| 2019 | 30 | 54 |
| 2020 | 45 | 46 |
| 2021 | 45 | 50 |
| 2022 | 53 | 45 |
| 2023 | 27 | 41 |
| 2024 | 48 | 48 |
| 2025 | 54 | 51 |
| 2026 | 32 | 42 |
By publication year. Applications have been published since 2001. 2026 runs to 8 Oct.
Subgroups
Granted patents
Recent patents
- Air compressor29 Sep 2026US 12,747,730 B2Hitachi Industrial Equipment Systems Co., Ltd.
- Pressure relief system for a portable air pump and inflator system22 Sep 2026US 12,742,444 B2The Noco Company
- Single stage reciprocating piston compressor with cooling22 Sep 2026US 12,742,447 B2I-Jack Technologies Incorporated
- Refrigerant compressor15 Sep 2026US 12,736,041 B2Secop GmbH
- Mechanical design of electro-hydrodynamic air mover apparatus15 Sep 2026US 12,736,042 B2Ventiva, Inc.
- Portable Air Pump and Inflator System with a Vibration Damping Base24 Sep 2026US 2026/0286946 A1The Noco Company
- Gas Compressor20 Aug 2026US 2026/0243258 A1Hitachi Industrial Equipment Systems Co., Ltd.
- Gas Compressor20 Aug 2026US 2026/0243261 A1Hitachi Industrial Equipment Systems Co., Ltd.
- Compressor with integrated cooling20 Aug 2026US 2026/0247575 A1Icebox Heat Pumps Inc.
- Packaged gas compressor13 Aug 2026US 2026/0235128 A1Hitachi Industrial Equipment Systems Co., Ltd.
Most cited
By later US patents
- Apparatus for cooling the power electronics of a refrigeration compressor drive189US 6,116,040 ACarrier Corporation · 2000
- Compressor system with demand cooling110US 4,974,427 ACopeland Corporation · 1990
- Compressor with control electronics103US 6,041,609 ADanfoss A/S · 2000
- High pressure compressor with controlled cooling during the compression phase97US 5,674,053 A1997
- Compressed air energy storage system utilizing two-phase flow to facilitate heat exchange97US 8,065,874 B2Lightsale Energy, Inc. · 2011