Keng-Chuan Chang

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Kaohsiung, TW

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Patents Grantslast 30 patents

Information Patent Grant
Wireless network-based voice communication security protection method
- Patent number 11,388,134
- Issue date Jul 12, 2022
- National Cheng Kung University
- Jung-Shian Li
- H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information Patent Grant
Method for fabricating polybenzoxazole/clay nanocomposite materials
- Patent number 7,081,491
- Issue date Jul 25, 2006
- National Cheng Kung University
- Steve Lien-Chung Hsu
- C08 - ORGANIC MACROMOLECULAR COMPOUNDS THEIR PREPARATION OR CHEMICAL WORKING-...

Patents Applicationslast 30 patents

Information Patent Application
WIRELESS NETWORK-BASED VOICE COMMUNICATION SECURITY PROTECTION METHOD
- Publication number 20210067478
- Publication date Mar 4, 2021
- National Cheng Kung University
- Jung-Shian LI
- H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information Patent Application
SUB-THRESHOLD VOLTAGE CIRCUIT OF MULTI-CHANNEL LENGTH
- Publication number 20130049800
- Publication date Feb 28, 2013
- JINN-SHYAN WANG
- H03 - BASIC ELECTRONIC CIRCUITRY
Information Patent Application
Bluetooth GPS receiver with a solar panel
- Publication number 20060119313
- Publication date Jun 8, 2006
- Keng-Hao Chang
- G01 - MEASURING TESTING
Information Patent Application
Method for fabricating polybenzoxazole/clay nanocomposite materials
- Publication number 20030139513
- Publication date Jul 24, 2003
- Steve Lien-Chung Hsu
- B29 - WORKING OF PLASTICS WORKING OF SUBSTANCES IN A PLASTIC STATE, IN GENERAL