Assignee
No assignee recorded.
Inventors
- Jack Lau (9 patents)
- Chi Ying Tsui (16 patents)
- Roger Shu Kwan Cheng (15 patents)
- Unknown
- Unknown
- Kin Ng (11 patents)
- Sai Kit Lai (2 patents)
- Kai Kin Chan (7 patents)
- Wing Chau Chan (7 patents)
US Patent 7548851 · Granted Jun 16, 2009
No assignee recorded.