Alleman Hall McCoy Russell & Tuttle LLP has an active Japan practice, advising both Japanese clients on U.S.­ intellectual property matters and U.S. clients on Japanese intellectual property matters. AHMRT attorneys work closely with Japanese patent firms to handle international patent and trademark prosecution, patent and trademark licensing, patent non-infringement and invalidity studies, trademark oppositions and cancellations, and patent and trademark litigation matters for clients in the U.S. and Japan. The firm has Japanese speaking staff, including Mark Alleman, who lived and worked in Japan for several years as a registered Foreign Lawyer (Gaikokuho Jimu Bengoshi), and travels to Japan frequently.