F24F 11/36
To leakage of heat-exchange fluid
Official title: to leakage of heat-exchange fluid
F24F11/36 (To leakage of heat-exchange fluid) appears on 364 US grants and 508 published applications in this corpus.
Search patents in F24F- Granted patents
- 364
- Published applications
- 508
- Assignees
- 105
- Inventors
- 821
- Latest grant
- 29 Sep 2026
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1987 | 1 | 0 |
| 1988 | 0 | 0 |
| 1989 | 0 | 0 |
| 1990 | 0 | 0 |
| 1991 | 0 | 0 |
| 1992 | 0 | 0 |
| 1993 | 2 | 0 |
| 1994 | 1 | 0 |
| 1995 | 0 | 0 |
| 1996 | 0 | 0 |
| 1997 | 0 | 0 |
| 1998 | 0 | 0 |
| 1999 | 0 | 0 |
| 2000 | 2 | 0 |
| 2001 | 5 | 0 |
| 2002 | 3 | 2 |
| 2003 | 3 | 1 |
| 2004 | 0 | 1 |
| 2005 | 1 | 4 |
| 2006 | 2 | 0 |
| 2007 | 2 | 2 |
| 2008 | 0 | 1 |
| 2009 | 0 | 2 |
| 2010 | 2 | 2 |
| 2011 | 0 | 5 |
| 2012 | 0 | 3 |
| 2013 | 1 | 5 |
| 2014 | 3 | 6 |
| 2015 | 3 | 7 |
| 2016 | 6 | 13 |
| 2017 | 7 | 20 |
| 2018 | 11 | 22 |
| 2019 | 23 | 40 |
| 2020 | 25 | 38 |
| 2021 | 34 | 56 |
| 2022 | 47 | 71 |
| 2023 | 40 | 52 |
| 2024 | 59 | 63 |
| 2025 | 53 | 60 |
| 2026 | 28 | 32 |
By publication year. Applications have been published since 2001. 2026 runs to 8 Oct.
Recent patents
- Refrigerant leakage detection method and device, air conditioner and storage medium29 Sep 2026US 12,747,882 B2Gd Midea Air-Conditioning Equipment Co., Ltd.
- Systems and methods for Refrigerant unit life cycle management22 Sep 2026US 12,742,564 B2Effecterra, Inc.
- Air conditioner15 Sep 2026US 12,736,240 B2Carrier Japan Corporation
- Refrigerant leak detector and air conditioner including refrigerant leak detector1 Sep 2026US 12,723,770 B2Changwon National University Industry Academy Cooperation Corps
- Modular encapsulated heat pumps11 Aug 2026US 12,704,279 B2
- Refrigerant leakage control method and device, air conditioner, and computer-readable storage medium8 Oct 2026US 2026/0309350 A1Gd Midea Heating & Ventilating Equipment Co., Ltd.
- Air conditioner and control method thereof10 Sep 2026US 2026/0266490 A1Samsung Electronics Co., Ltd.
- Wireless nitrogen test device to test air conditioning units for leaks3 Sep 2026US 2026/0259101 A1
- Air conditioning system27 Aug 2026US 2026/0251330 A1Carrier Japan Corporation
- Outdoor unit20 Aug 2026US 2026/0243451 A1Daikin Europe N.V.
Most cited
By later US patents
- Air conditioning apparatus92US 5,241,833 AKabushiki Kaisha Toshiba · 1993
- Performance testing method of air conditioner67US 6,279,332 B1Samsung Electronics Co., Ltd. · 2001
- Method for the diagnosis of an air conditioning system60US 6,240,733 B1Delphi Technologies, Inc. · 2001
- Cost-effective remote monitoring, diagnostic and system health prediction system and method for vapor compression and heat pump units based on compressor discharge line temperature sampling54US 9,168,315 B1Mainstream Engineering Corporation · 2015
- Leak detection with thermal imaging48US 6,866,089 B2Carrier Corporation · 2005