Tsung-Ching CHEN

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YUANLIN CITY, TW

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Patents Applicationslast 30 patents

Information Patent Application
NOVEL CAM ACTION HYDRAULIC DOOR CLOSER
- Publication number 20250207451
- Publication date Jun 26, 2025
- SUN-Q DOOR CONTROLS LIMITED
- Tsung-Ching CHEN
- E05 - LOCKS KEYS WINDOW OR DOOR FITTINGS SAFES
Information Patent Application
ECCENTRIC CAM ACTION DOOR CLOSER FOR GLASS DOOR
- Publication number 20250207448
- Publication date Jun 26, 2025
- SUN-Q DOOR CONTROLS LIMITED
- Tsung-Ching CHEN
- E05 - LOCKS KEYS WINDOW OR DOOR FITTINGS SAFES
Information Patent Application
CAM HYDRAULIC DOOR CLOSER FOR NARROW FRAME DOOR
- Publication number 20250188781
- Publication date Jun 12, 2025
- SUN-Q DOOR CONTROLS LIMITED
- Tsung-Ching CHEN
- E05 - LOCKS KEYS WINDOW OR DOOR FITTINGS SAFES
Information Patent Application
360-DEGREE ROTATIONAL CAM HYDRAULIC DOOR CLOSER FOR NARROW FRAME DOOR
- Publication number 20250188784
- Publication date Jun 12, 2025
- SUN-Q DOOR CONTROLS LIMITED
- Tsung-Ching CHEN
- E05 - LOCKS KEYS WINDOW OR DOOR FITTINGS SAFES