B60H 1/00899
Controlling the flow of liquid in a heat pump system
Official title: {Controlling the flow of liquid in a heat pump system (controlling the properties of the refrigerant liquid, e.g. pressure or temperature, B60H1/3204)}
B60H1/00899 (Controlling the flow of liquid in a heat pump system) appears on 1,137 US grants and 1,509 published applications in this corpus.
Search patents in B60H- Granted patents
- 1,137
- Published applications
- 1,509
- Assignees
- 254
- Inventors
- 1,976
- Latest grant
- 6 Oct 2026
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1984 | 1 | 0 |
| 1985 | 0 | 0 |
| 1986 | 2 | 0 |
| 1987 | 0 | 0 |
| 1988 | 1 | 0 |
| 1989 | 0 | 0 |
| 1990 | 0 | 0 |
| 1991 | 1 | 0 |
| 1992 | 0 | 0 |
| 1993 | 0 | 0 |
| 1994 | 6 | 0 |
| 1995 | 5 | 0 |
| 1996 | 8 | 0 |
| 1997 | 12 | 0 |
| 1998 | 11 | 0 |
| 1999 | 10 | 0 |
| 2000 | 21 | 0 |
| 2001 | 18 | 6 |
| 2002 | 9 | 8 |
| 2003 | 11 | 19 |
| 2004 | 16 | 24 |
| 2005 | 16 | 21 |
| 2006 | 16 | 7 |
| 2007 | 3 | 5 |
| 2008 | 2 | 8 |
| 2009 | 5 | 8 |
| 2010 | 2 | 4 |
| 2011 | 1 | 14 |
| 2012 | 0 | 34 |
| 2013 | 8 | 35 |
| 2014 | 6 | 51 |
| 2015 | 20 | 65 |
| 2016 | 32 | 87 |
| 2017 | 64 | 79 |
| 2018 | 77 | 87 |
| 2019 | 89 | 100 |
| 2020 | 80 | 93 |
| 2021 | 82 | 115 |
| 2022 | 103 | 106 |
| 2023 | 78 | 132 |
| 2024 | 96 | 152 |
| 2025 | 140 | 124 |
| 2026 | 85 | 125 |
By publication year. Applications have been published since 2001. 2026 runs to 8 Oct.
Subgroups
Granted patents
Recent patents
- Flow scheme for switch pump with four positions6 Oct 2026US 12,752,597 B2Cooper-Standard Automotive Inc.
- Thermal management system for a vehicle6 Oct 2026US 12,752,598 B2Hyundai Motor Company
- Refrigeration cycle device6 Oct 2026US 12,752,599 B2Denso Corporation
- Heat pump system for vehicle29 Sep 2026US 12,746,795 B2Hyundai Motor Company
- Thermal management pipeline system for a vehicle, thermal management control method, device and vehicle22 Sep 2026US 12,741,501 B2Jiangsu Xcmg Construction Machinery Research Institute Ltd.
- Air conditioning system for mobility8 Oct 2026US 2026/0307458 A1Hyundai Motor Company
- Heat pump air-conditioning system and vehicle8 Oct 2026US 2026/0307459 A1Beijing CHJ Information Technology Co., LTD.
- Thermal management system8 Oct 2026US 2026/0307466 A1Sanden Corporation
- Climate control for vehicles1 Oct 2026US 2026/0296130 A1Cummins Inc.
- Heat pump system for vehicle1 Oct 2026US 2026/0296138 A1Hanon Systems
Most cited
By later US patents
- Refrigeration-cycle device123US 6,347,528 B1Denso Corporation · 2002
- System for cooling electric vehicle batteries106US 6,138,466 ADaimlerChrysler AG · 2000
- System for controlling the temperature of the air in a cabin for an engine-electric motor hybrid car103US 5,497,941 ANippondenso Co., Ltd. · 1996
- Airconditioner having selectively operated condenser bypass control91US 5,291,941 ANippondenso Co., Ltd. · 1994
- Air conditioning apparatus for vehicle86US 6,047,770 ADenso Corporation · 2000