Popular Publications dominated the genre with Dime Mystery, Terror Tales, and Horror Stories. After Popular issued Thrilling Mysteries, Standard Magazines, publisher of the "Thrilling" line of pulps, claimed trademark infringement.
Popular Publications had a strong presence in the genre with titles like Dime Mystery, Terror Tales, and Horror Stories. Following their release of Thrilling Mysteries, Standard Magazines, which published the "Thrilling" series of pulp magazines, argued that they were infringing on trademarks.