Originally Posted by
Duragrouch
While the timing would have been right for this to be keeping the Dahon Curl D9 off the market (it's been shown online but vaporwear in terms of availability), the D9 showed significant innovation versus Brompton; Stiffer frame tube design I think, disc brakes, plus single sided fork with right front caliper mount to prevent axle pullout without thru axle (a feature shown on the Brom clone toward the end of the video). The Curl D3 and D4(?) were closer to the Brom design but still had a better frame I think and disc brakes.
Let's get you up to speed.
At 2017 Eurobike Dahon displayed their new Curl tri-fold bike. Brompton filed for an injunction, claiming some sort of IP infringement. At the first hearing, Dahon showed the Curl to the court and pointed to the 9 new, unique EU patents the bike's design had been awarded. The court threw the case out and ordered Brompton to pay Dahon's legal costs.