Intellectual Property Day exist, none of them supported by WIPO: Culture Freedom Day Document Freedom Day Hardware Freedom Day International Day Against DRM Public Domain Day Software Freedom Day See also Free culture Inventors' Day World Book and Copyright Day International Women's Day World Radio Day References External links World Intellectual Property Day at the World Intellectual Property Organization (WIPO) Heroes and villains of World Intellectual Property Day on Out-Law.com April observances Intellectual property law Intellectual Property day, World Recurring events established in 2000