Kwon Sik HWANG

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Gyeongsangnam-do, KR

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Patents Grantslast 30 patents

Information Patent Grant
Piping system for air conditioner
- Patent number 11,840,124
- Issue date Dec 12, 2023
- HS R&A Co., Ltd.
- Jae Hyeok Choi
- B60 - VEHICLES IN GENERAL
Information Patent Grant
Plate-type heat exchanger and air conditioning system for vehicle h...
- Patent number 11,364,773
- Issue date Jun 21, 2022
- HS R&A Co., Ltd.
- Jae Hyeok Choi
- B60 - VEHICLES IN GENERAL
Information Patent Grant
Brake hose
- Patent number 11,002,387
- Issue date May 11, 2021
- HS R&A Co., Ltd.
- Jae Hyeok Choi
- B60 - VEHICLES IN GENERAL

Patents Applicationslast 30 patents

Information Patent Application
CHECK VALVE, REFRIGERANT PIPING SYSTEM HAVING SAME, AND ASSEMBLING...
- Publication number 20220381356
- Publication date Dec 1, 2022
- HS R & A Co.,Ltd.
- Kwon Sik HWANG
- F16 - ENGINEERING ELEMENTS AND UNITS GENERAL MEASURES FOR PRODUCING AND MAINT...
Information Patent Application
PIPING SYSTEM FOR AIR CONDITIONER
- Publication number 20220153088
- Publication date May 19, 2022
- HS R & A Co.,Ltd.
- Jae Hyeok CHOI
- B60 - VEHICLES IN GENERAL
Information Patent Application
PLATE-TYPE HEAT EXCHANGER AND AIR CONDITIONING SYSTEM FOR VEHICLE H...
- Publication number 20210107336
- Publication date Apr 15, 2021
- HS R & A Co.,Ltd.
- Jae Hyeok CHOI
- B60 - VEHICLES IN GENERAL