I have a hard time understanding what is an authentic tube mod. Just because you use a different metal or different "look" or a different color, isn't everything based off the same concept of a tube with a battery that provides power to a heating element that vaporizes a nicotine solution? I believe that concept originated and the patent is held in China.
I understand these guys would like to protect their time and investment but they are basically using the same concept everyone else is. Unless you apply and receive some sort of protection under the law the market is open to all.
Isnt the concept of a Gucci handbag the same as another handbag, a Swiss watch, a pair of Nike trainers etc all share the same concept but differ in design and it is generally considered unacceptable to counterfeit any of these goods with the original logo.

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