Tung On Development Co. Ltd.
3Patents
0Active
3Granted
19Portfolio score
Filing activity: Oct 16, 1980 → Oct 16, 1980
Most-cited patents
| Patent | Title | Area | Cited by | Status |
|---|---|---|---|---|
| USD269275S | Illuminated magnifier | General | 28 | Expired |
| USD269184S | Illuminated magnifier | General | 26 | Expired |
| USD269185S | Illuminated magnifier | General | 2 | Expired |
Source: USPTO / EPO open patent data. Counts and citation impact are objective bibliographic measures.