In the past, the top patent offices for filing, and therefore perceived target markets, in assistive technology have been the U.S. and Japan.
ɪnðə pˈæst, ðə tˈɑːp pˈæʔn̩t ˈɑːfɪsᵻz fɔːɹ fˈaɪlɪŋ, ænd ðˈɛɹfoːɹ pɚsˈiːvd tˈɑːɹɡɪt mˈɑːɹkɪts, ɪn ɐsˈɪstɪv tɛknˈɑːlədʒi hɐvbɪn ðə jˈuː.ˈɛs. ænd dʒəpˈæn.