Tungsram Co., Ltd.
3Patents
0Active
3Granted
24Portfolio score
Filing activity: Oct 22, 1992 → Mar 4, 1994
Most-cited patents
| Patent | Title | Area | Cited by | Status |
|---|---|---|---|---|
| US5345142A | Single-ended low-pressure discharge lamp | Electricity | 4 | Expired |
| US5390526A | Double-profile drawing tool | Performing Operations; Transporting | 1 | Expired |
| US5434473A | High pressure sodium vapor discharge lamp | Electricity | 1 | Expired |
Source: USPTO / EPO open patent data. Counts and citation impact are objective bibliographic measures.