The VinylKey technology covered by the patent is billed as creating"next-level collectible vinyl."
The defendants are accused of selling at least $2.3m worth of counterfeit amiibo products on Amazon.
Low-knowledge consumers are fuelling the trillion-dollar counterfeit market; Educate them, researchers say.
Companies using the timber are putting themselves at risk of hefty financial penalties or referral for criminal prosecution.
The measures would strengthen oversight of 'de minimis' shipments, known to be a route for fake goods entering the US.
2024 report lists 38 online and 33 physical markets accused of involvement in "substantial" counterfeiting and piracy.