The relevant patent infringement case Inventist, Inc. v. Ninebot, Inc. started in 2016, and the trial will not take place UNTIL 2023. <a href="https://www.courtlistener.com/docket/4411896/inventist-inc-v-ninebot-inc/" rel="nofollow">https://www.courtlistener.com/docket/4411896/inventist-inc-v...</a><p>The inventor has not made any money from the invention, despite the US patent.
Other links: <a href="https://www.theguardian.com/technology/2016/jan/08/hoverboard-inventor-money-rights-knockoffs#:~:text=Someone%20was%20making%20lots%20of,few%20thousand%2C%E2%80%9D%20Chen%20said" rel="nofollow">https://www.theguardian.com/technology/2016/jan/08/hoverboar...</a>.
<a href="https://www.forbes.com/sites/wadeshepard/2018/01/31/meet-the-inventor-of-the-hoverboard-who-lost-millions-to-chinese-counterfeiters/?sh=29e1afd13c47" rel="nofollow">https://www.forbes.com/sites/wadeshepard/2018/01/31/meet-the...</a>