Christopher Kitchen

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Princeton, NJ, US

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Patents Grantslast 30 patents

Information Patent Grant
Systems and methods for providing a multi-modal evaluation of a pre...
- Patent number 10,706,738
- Issue date Jul 7, 2020
- Educational Testing Service
- Lei Chen
- G09 - EDUCATION CRYPTOGRAPHY DISPLAY ADVERTISING SEALS
Information Patent Grant
Systems and methods for providing a multi-modal evaluation of a pre...
- Patent number 10,311,743
- Issue date Jun 4, 2019
- Educational Testing Service
- Lei Chen
- G09 - EDUCATION CRYPTOGRAPHY DISPLAY ADVERTISING SEALS

Patents Applicationslast 30 patents

Information Patent Application
Systems and Methods for Providing a Multi-Modal Evaluation of a Pre...
- Publication number 20140302469
- Publication date Oct 9, 2014
- Educational Testing Service
- Lei Chen
- G09 - EDUCATION CRYPTOGRAPHY DISPLAY ADVERTISING SEALS