Weitong Zhu

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Oldsmar, FL, US

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Patents Grantslast 30 patents

Information Patent Grant
Security device with a magnet-based release mechanism
- Patent number 9,194,160
- Issue date Nov 24, 2015
- Vanguard Products Group, Inc.
- Christopher A. Kelsch
- E05 - LOCKS KEYS WINDOW OR DOOR FITTINGS SAFES
Information Patent Grant
Adjustable anti-theft bracket for displaying electronic gadgets
- Patent number 9,105,166
- Issue date Aug 11, 2015
- Vanguard Products Group, Inc.
- Christopher A. Kelsch
- G08 - SIGNALLING
Information Patent Grant
Self-shunting security device for detecting the absence or presence...
- Patent number 8,816,853
- Issue date Aug 26, 2014
- Vanguard Products Group, Inc.
- Christopher A. Kelsch
- G08 - SIGNALLING