The Delaware Supreme Court on Thursday upheld the $770 million sale of TransPerfect Global Inc. to co-founder Philip R. Shawe, bringing to an end more than three years of fierce litigation with his erstwhile partner Elizabeth Elting over control of the successful translation-service company.

In a two-page order, Justice Collins J. Seitz Jr. said that Delaware Court of Chancery Chancellor Andre G. Bouchard was correct in approving the deal, which hands Shawe full control of the firm and finally breaks the corporate deadlock that led Elting to petition for TransPerfect’s breakup in 2014.