Assignee

QINGDAO HISENSE HITACHI AIR CONDITIONING SYS CO LTD

CN·20 granted patents·19 pending applications·11 citations·filing 2014–2025

Technology mixF24F29 F25B22 Y02B9 F28F4 H02P4 F24H3

Top patents by PatentIndex Score

39 records

0181US10371396B2Air conditioner heat-radiating circulation systemQINGDAO HISENSE HITACHI AIR CONDITIONING SYS CO LTD·Filed 2015·Granted Aug 6, 2019·4 cites·17 claims
0278US11035597B2Outdoor unit of an air conditioning system, air conditioning system, and control method thereofQINGDAO HISENSE HITACHI AIR CONDITIONING SYS CO LTD·Filed 2018·Granted Jun 15, 2021·1 cites·12 claims
0370US12544867B1Operation and maintenance system for air conditioner production, and production methodQINGDAO HISENSE HITACHI AIR CONDITIONING SYS CO LTD·Filed 2025·Granted Feb 10, 2026·0 cites·20 claims
0469US11236926B2Air conditioning heat pump system using ejector, air conditioner, and air conditioner control methodQINGDAO HISENSE HITACHI AIR CONDITIONING SYS CO LTD·Filed 2019·Granted Feb 1, 2022·1 cites·18 claims
0569US2026029147A1Air conditioning systemQINGDAO HISENSE HITACHI AIR CONDITIONING SYS CO LTD·Filed 2025·Application pending·0 cites
0668US2024377104A1Hot water supply apparatusQINGDAO HISENSE HITACHI AIR CONDITIONING SYS CO LTD·Filed 2024·Application pending·0 cites
0767USD987807SAir conditioner panelQINGDAO HISENSE HITACHI AIR CONDITIONING SYS CO LTD·Filed 2020·Granted May 30, 2023·5 cites·1 claims
0867US2025230955A1Oil-free bearing liquid supply air-conditioning system and control method thereforQINGDAO HISENSE HITACHI AIR CONDITIONING SYS CO LTD·Filed 2025·Application pending·0 cites
0965US2025369674A1Air conditioning control system and air conditioning control methodQINGDAO HISENSE HITACHI AIR CONDITIONING SYS CO LTD·Filed 2025·Application pending·0 cites
1065US2025257894A1Air conditioning system and control method thereforQINGDAO HISENSE HITACHI AIR CONDITIONING SYS CO LTD·Filed 2025·Application pending·0 cites
1164US12442573B2Air conditioning system and control method thereofQINGDAO HISENSE HITACHI AIR CONDITIONING SYS CO LTD·Filed 2024·Granted Oct 14, 2025·0 cites·20 claims
1262US2024337410A1Fresh air integrated machineQINGDAO HISENSE HITACHI AIR CONDITIONING SYS CO LTD·Filed 2024·Application pending·0 cites
1360US12392505B2Air conditionerQINGDAO HISENSE HITACHI AIR CONDITIONING SYS CO LTD·Filed 2023·Granted Aug 19, 2025·0 cites·18 claims
1459US10132530B2Heat recovery variable-frequency multi-split heat pump system and control method thereofQINGDAO HISENSE HITACHI AIR CONDITIONING SYS CO LTD·Filed 2014·Granted Nov 20, 2018·0 cites·12 claims
1557US2024044542A1Air conditioner and control method thereofQINGDAO HISENSE HITACHI AIR CONDITIONING SYS CO LTD·Filed 2023·Application pending·0 cites
1654US12173964B2Air conditionerQINGDAO HISENSE HITACHI AIR CONDITIONING SYS CO LTD·Filed 2022·Granted Dec 24, 2024·0 cites·20 claims
1754US2024003557A1Humidifying deviceQINGDAO HISENSE HITACHI AIR CONDITIONING SYS CO LTD·Filed 2023·Application pending·0 cites
1853US2025043985A1Air conditioning system, and method for controlling air conditioning systemQINGDAO HISENSE HITACHI AIR CONDITIONING SYS CO LTD·Filed 2024·Application pending·0 cites
1953US2023375210A1Air conditioner system and control method thereofQINGDAO HISENSE HITACHI AIR CONDITIONING SYS CO LTD·Filed 2023·Application pending·0 cites
2052US12264826B2Air conditionerQINGDAO HISENSE HITACHI AIR CONDITIONING SYS CO LTD·Filed 2023·Granted Apr 1, 2025·0 cites·20 claims
2152US2024230191A9Air conditioner and control method thereofQINGDAO HISENSE HITACHI AIR CONDITIONING SYS CO LTD·Filed 2024·Application pending·0 cites
2252US2024426498A1Multi-split air-conditioning system, fault positioning method, and fault diagnosis model training methodQINGDAO HISENSE HITACHI AIR CONDITIONING SYS CO LTD·Filed 2024·Application pending·0 cites
2352US2025343493A1Electrolytic capacitor-less driving system and control method thereofQINGDAO HISENSE HITACHI AIR CONDITIONING SYS CO LTD·Filed 2025·Application pending·0 cites
2452US2023261600A1Air conditioner and method for determining energy consumption of air conditionerQINGDAO HISENSE HITACHI AIR CONDITIONING SYS CO LTD·Filed 2023·Application pending·0 cites
2551US10816250B2Air conditioner and method for controlling the sameQINGDAO HISENSE HITACHI AIR CONDITIONING SYS CO LTD·Filed 2018·Granted Oct 27, 2020·0 cites·19 claims
2651US10289123B2Drive control method for electronic expansion valveQINGDAO HISENSE HITACHI AIR CONDITIONING SYS CO LTD·Filed 2017·Granted May 14, 2019·0 cites·7 claims
2750US2024240808A1Air conditionerQINGDAO HISENSE HITACHI AIR CONDITIONING SYS CO LTD·Filed 2024·Application pending·0 cites
2849US12560365B2Air conditioner and method for calculating operating parameter of indoor unitQINGDAO HISENSE HITACHI AIR CONDITIONING SYS CO LTD·Filed 2024·Granted Feb 24, 2026·0 cites·20 claims
2949US2025321125A1Magnetic pole position determining system and methodQINGDAO HISENSE HITACHI AIR CONDITIONING SYS CO LTD·Filed 2025·Application pending·0 cites
3048US12181163B2Air conditionerQINGDAO HISENSE HITACHI AIR CONDITIONING SYS CO LTD·Filed 2022·Granted Dec 31, 2024·0 cites·20 claims
3148US2024288188A1Air conditioner, control system and control method of air conditionerQINGDAO HISENSE HITACHI AIR CONDITIONING SYS CO LTD·Filed 2024·Application pending·0 cites
3247US12590714B2Air conditioner indoor unitQINGDAO HISENSE HITACHI AIR CONDITIONING SYS CO LTD·Filed 2023·Granted Mar 31, 2026·0 cites·17 claims
3347US12123614B2Ducted air conditioner and assembling method thereofQINGDAO HISENSE HITACHI AIR CONDITIONING SYS CO LTD·Filed 2022·Granted Oct 22, 2024·0 cites·20 claims
3446US12130051B2Air source heat pump system and defrosting control method thereofQINGDAO HISENSE HITACHI AIR CONDITIONING SYS CO LTD·Filed 2021·Granted Oct 29, 2024·0 cites·17 claims
3544US11226917B2Translation-based signal generation method and device, home bus system (HBS) circuit, and user equipmentQINGDAO HISENSE HITACHI AIR CONDITIONING SYS CO LTD·Filed 2018·Granted Jan 18, 2022·0 cites·18 claims
3643US12523385B2Air conditioner monitoring system and air conditionerQINGDAO HISENSE HITACHI AIR CONDITIONING SYS CO LTD·Filed 2023·Granted Jan 13, 2026·0 cites·19 claims
3743US10429083B2Multi-type air conditioner systemQINGDAO HISENSE HITACHI AIR CONDITIONING SYS CO LTD·Filed 2014·Granted Oct 1, 2019·0 cites·15 claims
3841US2024019159A1Air conditioning system and method for controlling air conditioning systemQINGDAO HISENSE HITACHI AIR CONDITIONING SYS CO LTD·Filed 2023·Application pending·0 cites
3941US2023366577A1Method for controlling air conditioning system and air conditioning systemQINGDAO HISENSE HITACHI AIR CONDITIONING SYS CO LTD·Filed 2023·Application pending·0 cites

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