Patents by Inventor Clarence Chung

Clarence Chung has filed for patents to protect the following inventions. This listing includes patent applications that are pending as well as patents that have already been granted by the United States Patent and Trademark Office (USPTO).

  • SYSTEM AND METHOD OF USING CAPTCHAS AS ADS
    Publication number: 20090012855
    Abstract: A method of using advertisements in a Completely Automatic Public Turing test to tell Computers and Humans Apart (CAPTCHA) challenge/response transaction. In accordance with one aspect, a server allows access to some resource if the response to the ad/CAPTCHA challenge is an acceptable response.
    Type: Application
    Filed: July 6, 2007
    Publication date: January 8, 2009
    Applicant: YAHOO! INC.
    Inventors: Naveen Jamal, Chris Kalaboukis, Naveen Agarwal, Clarence Chung