Ministry of the Interior: Moscow remains 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.

Ministry of the Interior: Moscow remains 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.