Certain Secondary Cylindrical Batteries, Components Thereof, and Products Containing the Same; Inv. No. 337-TA-1518 (Violation)

This supplemental complaint, titled a second public supplement, is filed by LG Energy Solution Ltd. and LG Energy Solution Arizona, Inc. in Inv. No. 337-TA-1518 to replace non-certified patent assignment records for U.S. Patent No. 12,646,735 with certified copies as Exhibit 12 to the July 21, 2026 Complaint. The filing only perfects the ownership chain of title for the asserted '735 patent by supplying USPTO-certified assignment records. It does not describe the accused products, respondents, or relief in the text provided. The underlying complaint concerns secondary cylindrical batteries, but the relief sought is not stated here. Complainants are LG Energy Solution Ltd. and LG Energy Solution Arizona, Inc., represented by Quinn Emanuel. The letter supplements the Section 337 Complaint dated July 21, 2026 (EDIS Doc. 888795). Certified copies replace the non-certified Exhibit 12 attached to the first supplement letter of August 5, 2026 (EDIS Doc. 890571). Exhibit 12 shows an assignment of U.S. Patent No. 12,646,735 from inventors Jae Woong Kim, Hyoung Kwon Kim and Sang Uck Kim to LG Chem, Ltd., and then from LG Chem, Ltd. to LG Energy Solution, Ltd. The text does not identify respondents, accused products, domestic industry or requested relief.