Bell Tech Co., Ltd.
1Patents
0Active
1Granted
21Portfolio score
Filing activity: Dec 9, 1997 → Dec 9, 1997
Most-cited patents
| Patent | Title | Area | Cited by | Status |
|---|---|---|---|---|
| US6134337A | Loudspeaker | Electricity | 6 | Expired |
Source: USPTO / EPO open patent data. Counts and citation impact are objective bibliographic measures.