In this task, you are given a list. This list contains many lists of integers. The list is several items written within a []. Your task is to find the maximum number among the members of each inner list. The output should be a list comprised of the maximums with the same order as the internal lists.
[[90, -94, -143, 44, -128, 57, 52], [-81, 14, -141, -45, -41], [70, -122]]