Patent 7660816 was granted and assigned to AMAZON.COM, INC. on February, 2010 by the United States Patent and Trademark Office.
A system and process are disclosed for encoding selected data structures in browser cookies. The data structures may contain a variety of different types of data elements, including N-bit integers and other non-character elements. A version tracking scheme provides forward and backward compatibility between client and server software. The process is implemented without the need for any browser extensions, and without the need for users to download any special code to their computers.