B60H 1/321
For preventing the freezing of a heat exchanger
Official title: {for preventing the freezing of a heat exchanger}
B60H1/321 (For preventing the freezing of a heat exchanger) appears on 129 US grants and 118 published applications in this corpus.
Search patents in B60H- Granted patents
- 129
- Published applications
- 118
- Assignees
- 70
- Inventors
- 334
- Latest grant
- 26 Aug 2025
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1982 | 1 | 0 |
| 1983 | 2 | 0 |
| 1984 | 4 | 0 |
| 1985 | 2 | 0 |
| 1986 | 1 | 0 |
| 1987 | 1 | 0 |
| 1988 | 1 | 0 |
| 1989 | 3 | 0 |
| 1990 | 3 | 0 |
| 1991 | 2 | 0 |
| 1992 | 3 | 0 |
| 1993 | 3 | 0 |
| 1994 | 3 | 0 |
| 1995 | 0 | 0 |
| 1996 | 3 | 0 |
| 1997 | 5 | 0 |
| 1998 | 3 | 0 |
| 1999 | 3 | 0 |
| 2000 | 4 | 0 |
| 2001 | 3 | 0 |
| 2002 | 2 | 0 |
| 2003 | 2 | 3 |
| 2004 | 1 | 3 |
| 2005 | 1 | 1 |
| 2006 | 5 | 3 |
| 2007 | 1 | 5 |
| 2008 | 1 | 2 |
| 2009 | 0 | 0 |
| 2010 | 0 | 2 |
| 2011 | 1 | 2 |
| 2012 | 3 | 2 |
| 2013 | 0 | 5 |
| 2014 | 0 | 6 |
| 2015 | 2 | 7 |
| 2016 | 2 | 8 |
| 2017 | 7 | 10 |
| 2018 | 6 | 6 |
| 2019 | 9 | 14 |
| 2020 | 13 | 10 |
| 2021 | 11 | 6 |
| 2022 | 2 | 6 |
| 2023 | 5 | 3 |
| 2024 | 3 | 3 |
| 2025 | 2 | 7 |
| 2026 | 0 | 4 |
By publication year. Applications have been published since 2001. 2026 runs to 8 Oct.
Recent patents
- Vehicular heat management system26 Aug 2025US 12,397,619 B2Hanon Systems
- Cooling device for an object and method for operating a cooling device for an object11 Feb 2025US 12,220,970 B2Diehl Ako Stiftung & Co.KG
- Methods and systems for defrosting a transport climate control system evaporator30 Apr 2024US 11,970,048 B2Thermo King Corporation
- Method of defrosting a refrigeration system27 Feb 2024US 11,912,104 B2Carrier Corporation
- Method for operating an air-conditioning system for a vehicle23 Jan 2024US 11,878,571 B2Volkswagen Aktiengesellschaft
- Vehicle air conditioning device9 Jul 2026US 2026/0192632 A1Sanden Corporation
- Vehicle climate control system and method to reduce ice buildup18 Jun 2026US 2026/0166963 A1Ford Global Technologies, LLC
- Transportation refrigeration unit configured to conserve energy utilizedfor compressor cycles after a defrost event18 Jun 2026US 2026/0168715 A1Carrier Corporation
- Refrigerant line freeze prevention in climate control systems11 Jun 2026US 2026/0158868 A1Fca US LLC
- Methods and systems for reducing ice/frost buildup in an evaporator blower space of a transport climate control system11 Dec 2025US 2025/0376003 A1Thermo King Corporation
Most cited
By later US patents
- Airconditioner having selectively operated condenser bypass control91US 5,291,941 ANippondenso Co., Ltd. · 1994
- Air cycle air conditioner for heating and cooling82US 5,121,610 AAisin Seiki Kabushiki Kaisha · 1992
- Automotive air conditioner having condenser and evaporator provided within air duct69US 5,299,431 ANippondenso Co., Ltd. · 1994
- Method of controlling refrigeration system for automotive air conditioner65US 4,561,260 ANippondenso Co., Ltd. · 1985
- Apparatus for controlling a refrigerant expansion valve in a refrigeration system65US 4,768,348 ADiesel Kiki Co., Ltd. · 1988