As I understand it there was more than one "vaping" device invented decades before Ruyan ever mass created an e-cigarette, one of the most renowned 1 getting the one while in the patent pic beneath from Herbert Gilbert. OTOH, vaping hit Europe all over 2005 and NA all around 2007, https://alice-green-apple-mushroo41234.bloguetechno.com/the-smart-trick-of-is-it-illegal-to-buy-thc-vapes-online-that-no-one-is-discussing-70190313