Haing-Tack CHEN

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Fresh Meadows, NY, US

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Patents Grantslast 30 patents

Information Patent Grant
Methods and apparatus for providing access to emergency service pro...
- Patent number 9,402,173
- Issue date Jul 26, 2016
- HTC MARKETING CORP.
- Haing-Tack Chen
- H04 - ELECTRIC COMMUNICATION TECHNIQUE

Patents Applicationslast 30 patents

Information Patent Application
METHODS AND APPARATUS FOR PROVIDING ACCESS TO EMERGENCY SERVICE PRO...
- Publication number 20160255484
- Publication date Sep 1, 2016
- HTC Marketing Corp.
- Haing-Tack CHEN
- H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information Patent Application
METHODS AND APPARATUS FOR PROVIDING ACCESS TO EMERGENCY SERVICE PRO...
- Publication number 20150163653
- Publication date Jun 11, 2015
- HTC Marketing Corp.
- Haing-Tack CHEN
- H04 - ELECTRIC COMMUNICATION TECHNIQUE