US 12,073,002 B2
Enhancing user identification with privacy protection across web servers
Rajiv Sunkara, Mountain View, CA (US); Simon Yencken, Palo Alto, CA (US); and Derek Adelman, Atherton, CA (US)
Assigned to Fanplayr Inc., Menlo Park, CA (US)
Filed by Fanplayr Inc., Menlo Park, CA (US)
Filed on Mar. 14, 2022, as Appl. No. 17/694,587.
Claims priority of provisional application 63/172,036, filed on Apr. 7, 2021.
Prior Publication US 2022/0335164 A1, Oct. 20, 2022
Int. Cl. G06F 21/62 (2013.01); G06F 21/60 (2013.01)
CPC G06F 21/6263 (2013.01) [G06F 21/602 (2013.01)] 20 Claims
OG exemplary drawing
 
1. A method of limiting sharing of visitor identity information across web sites, including:
receiving from a visited web site server in a visitor's browser a web page that
includes a privacy script that runs in the visitor's browser and interfaces directly or indirectly with a privacy ID server and
includes one or more third-party apps that seek identification of the visitor;
the privacy script running in the browser retrieving a first party cookie including a visitor ID;
the privacy script forwarding directly or indirectly at least part of the first party cookie to the privacy ID server;
the privacy script receiving from the privacy ID server, a site-by-app-specific ID for the visited web site and one of the third-party apps, wherein site-by-app-specific IDs for the visitor are distinct and uncorrelated among distinct pairs of the web sites and the third-party apps; and
the privacy script providing respective site-by-app-specific IDs to respective third-party apps, without providing the visitor ID to the third-party apps, thereby allowing tracking of the visitor on repeat visits to the visited web site but not facilitating identification of the visitor across web sites.