There are two types of ecigs. I believe RFMK is basing their Cannacig off of a super charged ecig. Type one is a 3 piece design. Battery, Atomizer and Cartridge. A new type is a two piece design. Battery, (Atomizer/Cartridge). The Atomizer/Cartridge are rolled into one disposable unit called cartimizer. I believe RFMK is using the type one. Also, the Active ingredient (hash) requires a carrier fluid. Glycol can be used as a transport fluid to deliver the hash to the users lungs. It's this mixture of hash and carrier fluid(secret fluid) that will be patented. JMO