Not sure why you're calling it a "fake Brompton". From the pictures you provided, it seems to be plainly and clearly identified as a Sanye. I see no evidence anyone is trying to foist this example off as a product of Brompton Bicycle Limited.

This is more than a semantic argument. Mr. Ritchie's patent expired many, many years ago. The Brompton bicycle does not require the use of any innovative or proprietary materials or manufacturing processes in its creation. In short, for most of the world it's now an open design.