9 known cases. View patent page →
CAO Group alleged Walmart infringed patents including US 11,826,444. The case was dismissed with prejudice by stipulated Rule 41(a)(1)(A)(ii) dismissal, each side bearing its own costs and fees.
Declaratory-judgment action under 28 U.S.C. § 2201 seeking non-infringement/invalidity of CAO's patents, including US 11,826,444. Docket reported closed.
Willful-infringement default judgment entered against GD-Whitening/Zhuhai Jiashu; treble damages under 35 U.S.C. § 284 totaling $1,650,000. Patents at issue included US 11,826,444.
Pending patent infringement action asserting patents including US 11,826,444.
CAO Group filed a Schedule A infringement action (nicknamed Sheer White!) in N.D. Ill. asserting the '259 patent, family members '419, '582, '444, and '445, plus design patents D740117, D655163, and D655165. A TRO was granted around Jan. 8, 2026, freezing defendant store accounts/funds.
Ranir's DJ complaint stated that CAO Group sued Walmart in the District of Utah on March 5, 2024, asserting at least Claim 1 of the '259 patent and the '419, '582, '444, and '445 patents. The docket number and current status were not confirmed.
CAO Group sued Karaka LLC d/b/a The DoubleY Brands in N.D. Ill. The accused product was 'Boka Bright + White Sensitive Smile Whitening Strips.' The case was voluntarily dismissed on Dec 18, 2024.
CAO Group filed a mass-joinder action in N.D. Ill. against numerous e-commerce seller aliases (e.g., Fairywill, BYS Technology, OETU, Trayknick) identified on Schedule A. This is the case the Stanford NPE Litigation Database identifies as involving the '445 patent. It is the source of the severances that created cases #3 and #4.
CAO Group sued GuruNanda, LLC in C.D. Cal. The accused product is GuruNanda (whitening strips/oil pulling brand). The case is pending.