The Bathtub Trust was where the Standard Sanitary Manufacturing Company and forty-nine other companies engaged in anti-competitive practices in 1912. However, it was soon broken by President William Howard Taft. The case was heard by the Supreme Court of the United States as Standard Sanitary Mfg. Co. v. United States. Joseph R. Darling was a special agent of the United States Department of Justice who prepared the case. In 1915 he wrote "Darling on Trusts" a legal treatise.
- "Seller of Patent Can't Prescribe Prices or Sales of Product, Says Supreme Court.". New York Times. November 19, 1912. Retrieved 2009-07-23.
Attorney General Wickersham and the Administration of President Taft won a distinct victory to-day when the United States Supreme Court affirmed the opinion of the Federal District Court for Maryland that the Standard Sanitary Manufacturing Company and forty-nine other defendants, constituting the so-called Bathtub Trust, was a combination in restraint of trade and should be dissolved.
- "Joseph R. Darling Resigns". Christian Science Monitor. December 1, 1913. Retrieved 2009-07-23.
Joseph R. Darling, special agent of the department of justice, resigns to enter business Jan. 1 next. He prepared two government cases against the bathtub, harvester, motion picture and other so-called trusts.