Imeo,
If I remember correctly Ruyan hold the patent to the atomizer design we all know and use, and that patent covers reverse engineering such atomizer, so can you really re-engineer an existing patented design for better performance without infringement?
There's a very logical answer for this, but it has a lot to do with who he contracted with to make the atomizer. I sure hope that company is a patent holder or is licensed to make them, and wouldn't be very surprised if they are.