On Aug. 24, 2026 Ultra‑Mek, Incorporated (US), Leggett & Platt, Incorporated
(US) and L&P Property Management Company (UK) filed a complaint with the US
International Trade Commission under Section 337 of the Tariff Act of 1930. They
allege certain powered rocker‑recliner and glider‑recliner mechanisms and
units exported to, imported seating into, and sold in the US infringe their
patents and seek a 337 investigation plus a limited exclusion order and
cease‑and‑desist orders; four Chinese companies are named in the filing.