NIHON DENNETSUI CO., LTD.
5Patents
1Active
5Granted
32Portfolio score
Filing activity: Dec 19, 1977 → Mar 21, 2008 · 1 expiring within 5 years
Most-cited patents
| Patent | Title | Area | Cited by | Status |
|---|---|---|---|---|
| US4860523A | Hermetic packaging apparatus | Performing Operations; Transporting | 40 | Expired |
| US5173587A | Electric heating appliance | Electricity | 7 | Expired |
| US4138655A | High temperature sensor | Physics | 7 | Expired |
| US4399493A | Illuminated artificial flower ornament | Emerging Cross-Sectional Technologies | 6 | Expired |
| US8193472B2 | Susceptor | Electricity | 0 | Active |
Source: USPTO / EPO open patent data. Counts and citation impact are objective bibliographic measures.