Ya-Ching CHAN

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Yun Lin Hsien, TW

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Patents Grantslast 30 patents

Information Patent Grant
Ventilation assembly
- Patent number 12,276,109
- Issue date Apr 15, 2025
- Ya-Ching Chan
- E04 - BUILDING
Information Patent Grant
Heat dissipating structure for an iron-sheet house
- Patent number 9,772,114
- Issue date Sep 26, 2017
- Ya-Ching Chan
- E04 - BUILDING

Patents Applicationslast 30 patents

Information Patent Application
SAFETY LADDER
- Publication number 20230220730
- Publication date Jul 13, 2023
- YA-CHING CHAN
- E06 - DOORS, WINDOWS, SHUTTERS, OR ROLLER BLINDS IN GENERAL LADDERS
Information Patent Application
VENTILATION ASSEMBLY
- Publication number 20220307266
- Publication date Sep 29, 2022
- Ya-Ching CHAN
- E04 - BUILDING
Information Patent Application
VENTILATION DEVICE
- Publication number 20190249889
- Publication date Aug 15, 2019
- Ya-Ching CHAN
- E04 - BUILDING
Information Patent Application
VENTILATION ROOF
- Publication number 20190017276
- Publication date Jan 17, 2019
- Ya-Ching CHAN
- E04 - BUILDING
Information Patent Application
STRUCTURE OF A VENTILATED ROOF
- Publication number 20190017275
- Publication date Jan 17, 2019
- Ya-Ching CHAN
- F24 - HEATING RANGES VENTILATING
Information Patent Application
ESCAPE BASE ON A ROOF
- Publication number 20150096246
- Publication date Apr 9, 2015
- Ya-Ching CHAN
- E04 - BUILDING
Information Patent Application
HEAT DISSIPATING STRUCTURE FOR AN IRON-SHEET HOUSE
- Publication number 20150060011
- Publication date Mar 5, 2015
- Ya-Ching CHAN
- E04 - BUILDING