Assignee
No assignee recorded.
Inventors
- Hua Xiang (41 patents)
- Wenxia Li (3 patents)
- Jin Ma (7 patents)
- Rong Cai (3 patents)
- Unknown
- Weitao Yang (5 patents)
- Unknown
- Yongfeng Ma (4 patents)
US Patent 10637084 · Granted Apr 28, 2020
No assignee recorded.