Inventors were those responsible for inventions. (TV: The Daleks [+]Terry Nation, Doctor Who season 1 (BBC tv, 1963-1964)., The Keys of Marinus [+]Terry Nation, Doctor Who season 1 ('"`UNIQ--poem-00000000-QINU`"', 1964).)
John had been told that his and Gillian's grandfather was "an inventor or something." (COMIC: The Klepton Parasites [+]Neville Main, TVC comic stories (1964-1965).)
Nikola Tesla was notably appreciative of fellow inventors, regardless of gender; something the Thirteenth Doctor returned, being more impressed with him than Thomas Edison. (TV: Nikola Tesla's Night of Terror [+]Nina Métivier, Doctor Who series 12 (BBC One, 2020).)