Shanghai EA Medical Instruments Co., Ltd. (上海时代天使医疗器械有限公司) is a Chinese medical-device company headquartered at No. 500 Zhengli Road, Yangpu District, Shanghai. Chinese business registries list it as founded on 5 September 2011 with registered capital of RMB 30 million, legally represented by Hu Jiezhang, and wholly owned by Wuxi EA Medical Instruments Technologies Co., Ltd.; one registry filing reports roughly 400 insured employees for the entity. It is an operating subsidiary of the Angelalign Technology Inc. group (HKEX: 6699), the Cayman-incorporated clear-aligner maker founded in 2003, which reports about 4,300–4,500 employees, trailing-twelve-month revenue near US$440 million, and a market capitalization around US$2 billion. Angelalign is described as a subsidiary of CareCapital Orthotech Limited.
Products and operations. Shanghai EA conducts product design and research and development for the group's clear-aligner treatment solutions, and its registered scope covers sales of Class I, II and III medical devices. Group products include the Angel Aligner Pro, Select, KiD and Retainer lines, the iOrtho digital orthodontic treatment-planning platform, the angelButton attachment, and intraoral scanners. Angel entered the U.S. market in 2023 and now sells in more than 50 countries.
Patent-litigation posture. Shanghai EA is a pure defendant in the tracked data — 0 plaintiff cases, 1 defendant case — consistent with an operating company being sued rather than a patent assertion entity. It holds no apparent assertion portfolio of its own in our records; the group separately pursues infringement actions in Europe.
Notable context. The tracked case is Align Technology, Inc. v. Angelalign Technology Inc. et al., filed 18 August 2025 in the Eastern District of Texas, Marshall Division, before Judge J. Rodney Gilstrap — a venue favored by patent plaintiffs — with Align asserting clear-aligner patents (including U.S. 11,766,313 and 11,766,314) against Angelalign entities. The same dispute also appears in related proceedings: a USITC Section 337 investigation (337-TA-1471) naming Shanghai EA as a respondent, and Unified Patent Court actions involving Angelalign entities and Align.