Jian GUO

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San Diego, CA, US

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Patents Grantslast 30 patents

Information Patent Grant
Method of manufacturing a sound transducer
- Patent number 10,212,521
- Issue date Feb 19, 2019
- Nokia Technologies Oy
- Shengrong Shi
- H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information Patent Grant
Sound transducer
- Patent number 9,584,921
- Issue date Feb 28, 2017
- Nokia Technologies Oy
- Shengrong Shi
- H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information Patent Grant
Shielded audio apparatus
- Patent number 9,369,787
- Issue date Jun 14, 2016
- Nokia Technologies Oy
- Antero Johannes Tossavainen
- H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information Patent Grant
Audio transducer with electrostatic discharge protection
- Patent number 9,301,053
- Issue date Mar 29, 2016
- Nokia Corporation
- Jian Guo
- H04 - ELECTRIC COMMUNICATION TECHNIQUE

Patents Applicationslast 30 patents

Information Patent Application
Sound Transducer
- Publication number 20190141454
- Publication date May 9, 2019
- Nokia Technologies Oy
- Shengrong SHI
- H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information Patent Application
Sound Transducer
- Publication number 20170134864
- Publication date May 11, 2017
- Nokia Technologies Oy
- Shengrong SHI
- H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information Patent Application
Sound Transducer
- Publication number 20160021460
- Publication date Jan 21, 2016
- Nokia Corporation
- Shengrong Shi
- H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information Patent Application
Audio Transducer With Electrostatic Discharge Protection
- Publication number 20150146914
- Publication date May 28, 2015
- Nokia Corporation
- Jian Guo
- H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information Patent Application
Shielded Audio Apparatus
- Publication number 20140355812
- Publication date Dec 4, 2014
- Antero Johannes TOSSAVAINEN
- H04 - ELECTRIC COMMUNICATION TECHNIQUE