Zhuhai Shi Wei Tai Electronics Co., Ltd. d/b/a Ondula-A

Zhuhai Shi Wei Tai Electronics Co., Ltd. d/b/a Ondula-A is a privately held Chinese company based at Room 527-1, 5th Floor, No. 5 Jingyuan Road, Jida, Zhuhai, Guangdong (邮编 519000). Chinese business-registry records (Tianyancha, unified social credit code 91440402MABW69LL9H) show it was incorporated on 29 August 2022 with registered capital of RMB 100,000 and a single shareholder, Ren Wei (任玮). No public source verified its employee count, revenue, or funding; it does not appear to be publicly traded or a subsidiary of a listed parent.

Products / operations. Shi Wei Tai is an operating company, not a patent-assertion entity. It sells third-party compatible/remanufactured ink cartridges under the "Ondula" brand, marketed as "Ondula-A," primarily through Amazon marketplaces (US, UK, Italy, Australia). Listings cover aftermarket replacements for Epson (202XL, 405XL, 702XL, 802XL, 812XL), Canon (PGI-580/CLI-581), and Brother (LC424) cartridge families, sold in multipacks with aftermarket chips.

Patent-litigation posture. The database shows one tracked matter and zero prior appearances: 0 cases as plaintiff, 1 as defendant. That profile — a defendant only, with no offensive filings — is consistent with an operating importer/exporter being attacked, not an NPE. The venue is not a district court but the U.S. International Trade Commission, where Section 337 complaints target imported goods and are filed by rights holders.

Notable case. Epson Portland Inc. et al. v. Dongguan Ocbestjet Digital Technology Co., Ltd. d/b/a Ocbestjet et al., filed 13 May 2025, is the tracked matter. Per USITC notices, it corresponds to the parallel investigations Certain Ink Cartridges and Components Thereof I and II (337-TA-1451 and 337-TA-1452), brought by Epson Portland, Epson America, and Seiko Epson against roughly 20 aftermarket-cartridge respondents, most in Zhuhai and Shenzhen. Shi Wei Tai was a named respondent in both; the Commission found it in default (Order No. 8, September 2025, unreviewed November 2025), and the investigations ended in exclusion orders covering ten Epson patents.