Chaehi YOON

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Gyeonggi-do, KR

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Patents Grantslast 30 patents

Information Patent Grant
Apparatus for opening and closing front entrance
- Patent number 9,556,645
- Issue date Jan 31, 2017
- Byungman Yoon
- E05 - LOCKS KEYS WINDOW OR DOOR FITTINGS SAFES
Information Patent Grant
Digital entrance opening and closing device
- Patent number 9,528,299
- Issue date Dec 27, 2016
- Byungman Yoon
- E05 - LOCKS KEYS WINDOW OR DOOR FITTINGS SAFES

Patents Applicationslast 30 patents

Information Patent Application
DIGITAL ENTRANCE OPENING AND CLOSING DEVICE
- Publication number 20150128667
- Publication date May 14, 2015
- Byungman YOON
- E05 - LOCKS KEYS WINDOW OR DOOR FITTINGS SAFES
Information Patent Application
APPARATUS FOR OPENING AND CLOSING FRONT ENTRANCE
- Publication number 20150013401
- Publication date Jan 15, 2015
- Byungman YOON
- E05 - LOCKS KEYS WINDOW OR DOOR FITTINGS SAFES