Zhuhai Yixing Electronics Co., Ltd. d/b/a Greenjob USSOP

Zhuhai Yixing Electronics Co., Ltd. (d/b a. "Greenjob USSOP")

Zhuhai Yixing Electronics Co., Ltd. is a privately held Chinese company based in Xiangzhou District, Zhuhai, Guangdong Province. Its Amazon seller profiles list a business address at Ningxi Road, Taihe Business Center, Zhuhai, and identify it as a privately owned business (Chinese unified social credit code 91440402MA55G7GP3R; German VAT DE339788964). No public source discloses employee count, revenue, founding date, or parent ownership; the company is not publicly traded. A UK trademark filing lists the corporate name in association with printing inks and toner/ink cartridges.

Products / operations. The company is an operating seller of aftermarket printer consumables rather than a patent-assertion entity. It markets compatible ink cartridges and toner cartridges for inkjet and laser printers under the "Greenjob" brand, sold direct-to-consumer through Amazon storefronts such as "Greenjob EUSHOP" and "Greenjob USSOP" in European and U.S. channels. Its product scope, per its trademark filings and litigation record, centers on third-party (non-OEM) ink and toner cartridges.

Litigation posture. The tracked record shows zero suits filed by the company and one as a defendant — the profile of an operating company on the receiving end of infringement claims, not an NPE. Its sole tracked matter is a Section 337 investigation at the U.S. International Trade Commission arising from a May 13, 2025 complaint by Epson Portland Inc., Epson America, Inc., and Seiko Epson Corporation.

Notable case. Epson Portland Inc. et al. v. Dongguan Ocbestjet Digital Technology Co., Ltd. d/b/a Ocbestjet et al. (ITC, filed May 13, 2025; Investigations 337-TA-1451 and 337-TA-1452, "Certain Ink Cartridges and Components Thereof I/II"). Epson asserted U.S. Patent Nos. 8,540,347; 9,061,508; 11,535,037; 11,820,150; and 12,246,539, seeking limited or general exclusion orders and cease-and-desist relief against a large group of Chinese and U.S. cartridge sellers. Zhuhai Yixing was named a respondent, and ITC notices identify it among the respondents found in default. The case reflects OEM enforcement against the aftermarket compatible-cartridge trade.