Qiujie Li

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Nanjing, CN

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Patents Grantslast 30 patents

Information Patent Grant
Image-based CAPTCHA exploiting context in object recognition
- Patent number 9,317,676
- Issue date Apr 19, 2016
- Microsoft Technology Licensing, LLC
- Jia Liu
- G06 - COMPUTING CALCULATING COUNTING
Information Patent Grant
Image-based CAPTCHA exploiting context in object recognition
- Patent number 8,483,518
- Issue date Jul 9, 2013
- Microsoft Corporation
- Bin Zhu
- G06 - COMPUTING CALCULATING COUNTING

Patents Applicationslast 30 patents

Information Patent Application
Image-Based CAPTCHA Exploiting Context in Object Recognition
- Publication number 20130298195
- Publication date Nov 7, 2013
- Jia Liu
- G06 - COMPUTING CALCULATING COUNTING
Information Patent Application
Image-Based CAPTCHA Exploiting Context in Object Recognition
- Publication number 20110208716
- Publication date Aug 25, 2011
- Microsoft Corporation
- Jia Liu
- G06 - COMPUTING CALCULATING COUNTING