Henry Kong Sun Ching

Follow

Person

Alberta, CA

People

Patents Grantslast 30 patents

Information Patent Grant
Portable door guard hinge security device
- Patent number 10,626,644
- Issue date Apr 21, 2020
- Henry Kong Sun Ching
- Y10 - TECHNICAL SUBJECTS COVERED BY FORMER USPC
Information Patent Grant
Portable door guard hinge security device
- Patent number 9,670,706
- Issue date Jun 6, 2017
- Henry Kong Sun Ching
- E05 - LOCKS KEYS WINDOW OR DOOR FITTINGS SAFES

Patents Applicationslast 30 patents

Information Patent Application
PORTABLE DOOR GUARD HINGE SECURITY DEVICE
- Publication number 20170335608
- Publication date Nov 23, 2017
- Henry Kong Sun Ching
- E05 - LOCKS KEYS WINDOW OR DOOR FITTINGS SAFES
Information Patent Application
PORTABLE DOOR GUARD HINGE SECURITY DEVICE
- Publication number 20150008684
- Publication date Jan 8, 2015
- Henry Kong Sun Ching
- E05 - LOCKS KEYS WINDOW OR DOOR FITTINGS SAFES