General form of registration statement for all companies including face-amount certificate companies

Intangible Assets, Net - Schedule of Intangible Assets, Net (Details) (10-K)

v3.19.2
Intangible Assets, Net - Schedule of Intangible Assets, Net (Details) (10-K) - USD ($)
Jun. 30, 2019
Dec. 31, 2018
Dec. 31, 2017
Goodwill and Intangible Assets Disclosure [Abstract]      
Patents $ 585,589 $ 578,326 $ 493,027
Less accumulated amortization (311,540) (292,512) (263,843)
Patents, Total 274,049 285,814 229,184
Patents pending 155,811 148,720 197,426
Total intangible assets, net $ 429,860 $ 434,534 $ 426,610