At one point, Pimm, one of his employees, or one of his successors created the first Pimm's liqueur, designed to be mixed with lemonade, and which was trademarked and commercially released in 1912.
In the past, someone working for Pimm, either a current employee or a successor, developed the initial Pimm's liqueur, intended to be combined with lemonade, and it was registered as a trademark and launched commercially in 1912.