I te 1902, ka mate te perehitini o DuPont, Eugene du Pont, a ka hokona e nga hoa i ora te kamupene ki nga mokopuna e toru o te kaiwhakaara taketake. I tohua a Charles Lee Reese hei kaiwhakahaere ka tiimata te kamupene ki te whakakotahi i o raatau tari rangahau. I muri mai ka hokona e te kamupene etahi kamupene matū iti ake; i te tau 1912 i hangaia e enei mahi te tirotiro a te kawanatanga i raro i te Sherman Antitrust Act. I kii nga kooti ko te mana o te kamupene mo te pakihi pupuhi he monopoly me te whakahau i te whakakorenga. I puta te whakatau a te kooti i te hanganga o te Hercules Powder Company (i muri mai ko Hercules me tetahi waahanga o Ashland) me te Atlas Powder Company (i hangaia e Imperial Chemical Industries (IIC) me AkzoNobel) inaianei ko DuPont. I te timatanga o te rautau 20th, i tukuna e DuPont te pukapuka a DuPont ki te United States ki te whakamahi i nga momo momo paura nikotini me etahi atu taonga, i hangaia i roto i te United States ki te whakamahi i
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