3 known cases. View patent page →
Petition for inter partes review filed by Kinik Company against Chien-Min Sung. The subject patent of the IPR is US 9,724,802; the petition states that parent patents being litigated in the Taiwan Litigations include US 7,762,872, 8,398,466, 8,974,270, and 9,138,862. The proceeding was terminated after settlement.
Dr. Chien-Min Sung sued Kinik Company and Wafertech LLC in the District of Delaware asserting three U.S. patents. The court stayed the case on January 20, 2016, and later administratively closed it pending Taiwan ownership/rights litigation and appeals. The narrative does not itemize the three patents and cannot confirm that US 7,762,872 was among them.
Inter partes review related to the Sung v. Samsung litigation, concerning US 9,724,802. The Board found claims unpatentable in a Final Written Decision on September 17, 2025.