Zhuhai Jiashu Dianzishangwu Youxiangongsi

I'll research this company before writing the profile.

Company overview. "Zhuhai Jiashu Dianzishangwu Youxiangongsi" (珠海佳澍电子商务有限公司; pinyin for "Zhuhai Jiashu E-Commerce Co., Ltd.") is a China-based online retailer that does business under the brand name GD-Whitening. Court filings identify it as a foreign private limited company; its Chinese-language name indicates a Zhuhai (Guangdong) registration. I could not verify a founding year, ownership structure, employee count, or revenue band from public sources — Chinese corporate registry data for this entity was not retrievable, and no parent company or public listing is evident. Treat size/ownership as unconfirmed.

Products / services. GD-Whitening sells teeth-whitening products — the litigation record refers to whitening strips and related dental/whitening consumer goods sold through online marketplaces. Court filings describe it as an e-commerce seller of the "same type of product" as the plaintiff, and it moved to dissolve asset restraints over non-accused, non-strip products. It is an operating company, not an NPE: it has no plaintiff-side patent suits, no asserted patent portfolio, and its role is that of an accused product seller.

Patent-litigation posture. In the tracked data it appears once, as a defendant (0 plaintiff cases). This is the classic profile of a small online merchant swept into a "Schedule A" multi-defendant patent case rather than a litigant asserting patents. The suit is in the Northern District of Illinois, a venue that, alongside the Eastern District of Texas, has become a hub for consolidated online-counterfeiting/patent filings against marketplace sellers.

Notable case. CAO Group, Inc. v. The Individuals... Identified on Schedule A (N.D. Ill. 1:24-cv-01211, filed Feb. 2024) accused dozens of marketplace sellers, including GD-Whitening, of infringing CAO's dental whitening-strip patents (e.g., US 10,603,259; US 10,646,419; US 11,219,582). GD-Whitening successfully moved to sever under 35 U.S.C. § 299, and the claims against it became a separate case, CAO Group, Inc. v. GD-Whitening (1:24-cv-05129, June 20, 2024). Its counsel withdrew in July 2024, and a 2025 default judgment of $1,650,000 (trebled) was entered against it.