Shenzhen Kaizhen Technology Co., Ltd. d/b/a PayForLess

Company overview. Shenzhen Kaizhen Technology Co., Ltd. (深圳楷臻科技有限公司), which does business as PayForLess, is a privately held Chinese company based in Shenzhen, Guangdong. No public parent, listing, or ticker was identified, and I could not verify a founding year, employee count, or revenue figure from a reliable public source. Its Chinese-language registration name is confirmed in MOFCOM trade-remedy notices and USITC filings.

Products / operations. PayForLess is an operating company that sells third-party (compatible and remanufactured) inkjet ink cartridges under its own brand, marketed as replacements for OEM cartridges from Epson (e.g., 34XL, 35XL, 202XL, 212XL, 232XL, 405XL, 822XL), Brother (LC401XL, LC406XL), and Canon (PG-275XL/CL-276XL) printer lines. Distribution is primarily through Amazon marketplaces in the US, Canada, UK, and EU. Product listings state manufacturing in ISO 9001/ISO 14001-certified facilities. This is a retail/consumer-aftermarket consumables business, not an NPE or licensor.

Patent-litigation posture. The company appears in the database solely as a defendant (1 case, 0 plaintiff-side cases), consistent with an operating importer/retailer being attacked rather than an entity asserting patents. The single tracked matter is the Section 337 ink-cartridge action brought by Epson Portland Inc., Epson America, Inc., and Seiko Epson Corporation, filed 2025-05-13 at the U.S. International Trade Commission — a venue chosen by the patent owner, not a district-court patent venue.

Notable case context. In that proceeding (Certain Ink Cartridges and Components Thereof, investigations 337-TA-1451 and 337-TA-1452, instituted June 12, 2025), Shenzhen Kaizhen was named among roughly twenty respondents, nearly all Chinese cartridge sellers and e-commerce resellers. Commission notices record that Shenzhen Kaizhen was found in default alongside other respondents (Order No. 10, unreviewed December 5, 2025, and Order No. 13, unreviewed January 8, 2026). Epson asserted cartridge-related patents and sought a general or limited exclusion order plus cease-and-desist orders. No other litigation appearances for this entity were identified.