Assignee
No assignee recorded.
Inventors
- Yonghua Zhang (14 patents)
- Huiming Zhang (32 patents)
- Unknown
- Hongbo Wang (60 patents)
- Mei Li (5 patents)
- Unknown
- Unknown
- Chunfang Xu (3 patents)
- Unknown
US Patent 11281243 · Granted Mar 22, 2022
No assignee recorded.