David Chen Chang

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Mountain View, CA, US

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Patents Grantslast 30 patents

Information Patent Grant
Query statistics provider
- Patent number 8,099,412
- Issue date Jan 17, 2012
- Google Inc.
- Weipeng Yan
- G06 - COMPUTING CALCULATING COUNTING

Patents Applicationslast 30 patents

Information Patent Application
ELECTRONIC DEVICE AND METHOD FOR ACTIVITY DETECTION
- Publication number 20250085740
- Publication date Mar 13, 2025
- Google LLC
- Fang Liu
- G06 - COMPUTING CALCULATING COUNTING
Information Patent Application
QUERY STATISTICS PROVIDER
- Publication number 20080294630
- Publication date Nov 27, 2008
- Weipeng Yan
- G06 - COMPUTING CALCULATING COUNTING