As I understand it there was multiple "vaping" device invented decades prior to Ruyan at any time mass manufactured an e-cigarette, probably the most renowned a single becoming the one from the patent pic below from Herbert Gilbert. OTOH, vaping hit Europe all around 2005 and NA about 2007, so https://brainstormboombarpsilocyb95927.total-blog.com/indicators-on-can-you-copyright-dank-vapes-online-you-should-know-60238469