The Ministry of the Interior named Moscow the leader in the number of migrant workers working on patents. The top five also includes Moscow Region, St. Petersburg and Leningrad Region, Sverdlovsk Region and Tatarstan.

The Ministry of the Interior named Moscow the leader in the number of migrant workers working on patents. The top five also includes Moscow Region, St. Petersburg and Leningrad Region, Sverdlovsk Region and Tatarstan.