Zhuhai Zhenyang Electronics Co., Ltd. d/b/a Oinkwere

Zhuhai Zhenyang Electronics Co., Ltd. (d/b/a Oinkwere) is a privately held Chinese company headquartered in Zhuhai, Guangdong Province. It is not publicly listed, and no verified founding year, employee count, revenue band, or parent-company relationship could be confirmed from public sources. Its consumer-facing identity is the house brand "OINKWERE," under which it sells goods online.

Products / operations. Oinkwere is an aftermarket printer-supply brand. Its listed products are third-party compatible and remanufactured inkjet ink cartridges for OEM printers — including Epson 212XL, 16XL, and 405XL cartridges and Brother LC401 cartridges — with aftermarket chips marketed as compatible with Epson WorkForce/Expression Home and Brother MFC-J series printers. Products are sold through third-party e-commerce marketplaces such as Amazon (US, Canada, France, Italy listings) rather than through any US manufacturing or retail footprint. The company is an operating seller, not a non-practicing entity: it has no patent-assertion activity.

Patent-litigation posture. The tracked data show Zhuhai Zhenyang as a defendant in one case, plaintiff in none — consistent with an operating importer/seller defending against an enforcement action rather than asserting patents. That single tracked matter is Epson Portland Inc. et al. v. Dongguan Ocbestjet Digital Technology Co., Ltd. d/b/a Ocbestjet et al., filed 2025-05-13 at the U.S. International Trade Commission. The venue is the ITC under Section 337 (19 U.S.C. § 1337), not a district court; there is no Eastern District of Texas exposure in the record.

Context. The complaint was filed by Epson Portland Inc., Epson America, Inc., and Seiko Epson Corporation — collectively 20 named respondents of compatible-cartridge sellers and US distributors. The USITC instituted investigations 337-TA-1451 and 337-TA-1452 on June 12, 2025, asserting Epson patents including U.S. 8,540,347; 9,061,508; 11,535,037; 11,820,150; and 12,246,539, and seeking a general or limited exclusion order plus cease-and-desist orders. Commission notices and Federal Register records list Zhenyang among defaulting respondents (ALJ Order No. 10, September 30, 2025, unreviewed December 5, 2025). No merits findings specific to the company are asserted here.

Sources: USITC News Release 25-073 (June 12, 2025); Federal Register 90 FR 21336; Oinkwere product listings (Amazon).