Jing Zheng

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Hamburg, DE

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Patents Grantslast 30 patents

Information Patent Grant
Bolt assembly and bolt carrier assembly with switch mechanism for d...
- Patent number 8,745,911
- Issue date Jun 10, 2014
- Jing Zheng
- F41 - WEAPONS
Information Patent Grant
Annular piston system for rifles
- Patent number 8,746,126
- Issue date Jun 10, 2014
- Jing Zheng
- F41 - WEAPONS

Patents Applicationslast 30 patents

Information Patent Application
Annular Piston System for Rifles
- Publication number 20130291713
- Publication date Nov 7, 2013
- Jing Zheng
- F41 - WEAPONS
Information Patent Application
Bolt Assembly and Bolt Carrier Assembly with Switch Mechanism for D...
- Publication number 20130125440
- Publication date May 23, 2013
- Jing Zheng
- F41 - WEAPONS