BKV by BKV Corporation (Track this)
Intl: (037) Building construction and repair; (040) Treatment of materials; (042) Computer, scientific & legal US: 100; 103; 106; 100; 103; 106; 100; 101 Filing date: 23-Nov-2021 Serial number: 97139772
BKV by Han Dong (Track this)
Intl: (011) Environmental control apparatus US: 013; 021; 023; 024; 031; 034 Filing date: 30-Nov-2020 Serial number: 90347397