Hyeon Sik LEE

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Bucheon-si, Gyeonggi-do, KR

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Patents Grantslast 30 patents

Information Patent Grant
Cooling device for heat treatment
- Patent number 12,345,480
- Issue date Jul 1, 2025
- DONGWOO HST CO., LTD.
- Soo Jin Chung
- F28 - HEAT EXCHANGE IN GENERAL
Information Patent Grant
Dual venturi for combustor
- Patent number 10,215,404
- Issue date Feb 26, 2019
- Kyungdong Navien Co., Ltd.
- Hyeon Sik Lee
- F23 - COMBUSTION APPARATUS COMBUSTION PROCESSES

Patents Applicationslast 30 patents

Information Patent Application
COOLING DEVICE FOR HEAT TREATMENT
- Publication number 20240219130
- Publication date Jul 4, 2024
- DONGWOO HST CO., LTD.
- Soo Jin CHUNG
- F28 - HEAT EXCHANGE IN GENERAL
Information Patent Application
COOLING DEVICE FOR HEAT TREATMENT
- Publication number 20240218477
- Publication date Jul 4, 2024
- DONGWOO HST CO., LTD.
- Soo Jin Chung
- C21 - METALLURGY OF IRON
Information Patent Application
COMBUSTION APPARATUS HAVING INTAKE AIR/EXHAUST AIR HEAT EXCHANGER
- Publication number 20150362214
- Publication date Dec 17, 2015
- Kyungdong Navien Co., Ltd.
- Jun Kyu Park
- F23 - COMBUSTION APPARATUS COMBUSTION PROCESSES
Information Patent Application
DUAL VENTURI FOR COMBUSTOR
- Publication number 20150345784
- Publication date Dec 3, 2015
- KYUNGDONG NAVIEN CO., LTD.
- Hyeon Sik LEE
- F23 - COMBUSTION APPARATUS COMBUSTION PROCESSES