Originally Posted by
50PlusCycling
Their argument is that their design drawings were copyrighted when the bicycle was designed, and anyone using written plans similar to those made by Brompton are infringing on Brompton’s copyright.
I find this odd.
If someone makes a 100% copy of a Porsche with just their name on it, it's unlikely Porsche won't win in court. Regardless of the technical considerations (eg. folding), the product has to be physically different enough that consumers can tell them apart.
For instance, compare the Brompton with Dahon's Curl. They're clearly different enough so that Dahon can sell them in Europe and North America:
