That's gonna be tough; as author mentioned, they're made and sold primarily in China, for 3$ a piece (no wonder they're popular). The clones also have a different PCB design (it doesn't say nice!nano on it), so they're not that easily mistaken.
The author is incentivized to go after companies in his country selling the clones.
The author is incentivized to go after companies in his country selling the clones.