Yi Shi
1Patents
0Active
1Granted
20Portfolio score
Filing activity: Feb 2, 1999 → Feb 2, 1999
Most-cited patents
| Patent | Title | Area | Cited by | Status |
|---|---|---|---|---|
| US6415386B1 | Cryptogram lock system with automatically variable true random code tonglingge | Physics | 10 | Expired |
Source: USPTO / EPO open patent data. Counts and citation impact are objective bibliographic measures.