07-23 [Jun.25.2019]Obtain a patent (1)
01-28 [Dec.27.2018]Obtain a patent (1)
01-28 [Dec.6.2018]Obtain a patent( (1)
09-14 [Aug.25.2017]Obtain a patent (1)
06-27 [Jun,16,2017]Obtain a patent (1)