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Mobile Sitemaps

Google

Patent Family · Alan Strohm, Feng Hu, Sascha Brawer, Maximilian Ibel, Ralph M. Keller, Narayanan Shivakumar, Elad Gil · 2005

Free for public use since 2026.

Assigned to: Google LLC

US 8,655,864 B1 United States lapsed 2025
JP 5015935 B2 Japan lapsed 2026
CN 101971172 B China lapsed 2026
KR 10-1298888 B1 South Korea lapsed 2026
CA 2621031 A1 Canada application abandoned
BR PI0616595 A2 Brazil application abandoned

An extension of the Sitemaps mechanism for mobile-formatted content. A site’s sitemap can declare the format of each document — XHTML Mobile Profile, WML, i-mode HTML — so a search engine can crawl it with a matching client profile and index the mobile pages separately from their desktop equivalents, rather than fetching everything as a desktop browser would.

A mobile-web extension of the Sitemaps protocol. Granted in the United States, Japan, China and South Korea; the Canadian and Brazilian filings were not pursued to grant.