HL

Hanjun Liu

SC Shenzhen Hua Xin Information Technology Co.: 1 patents #3 of 8Top 40%
Overall (All Time): #1,099,701 of 4,157,543Top 30%
4
Patents All Time

Issued Patents All Time

Showing 1–4 of 4 patents

Patent #TitleCo-InventorsDate
12174082 Integrated detection test device for drill bit and rotary blowout preventer and detection method thereof Yonggang Deng, Shundong Tang, Gang Wang, Wenbin Chen, Yi-Chun Tang +10 more 2024-12-24
12163856 Multifunctional rotary blowout preventer test device and method thereof Shundong Tang, Gang Wang, Ketao Cai, Yonggang Deng, Shaowei Chen +8 more 2024-12-10
D1012982 Lawnmower robot Bin Chen 2024-01-30
9021530 Method and system for playing background music and key tone based on embedded browser Rui Yi 2015-04-28