Sumitomo Electric, Ltd.
8Patents
1Active
8Granted
31Portfolio score
Filing activity: May 26, 1982 → Nov 4, 2005 · 1 expiring within 5 years
Most-cited patents
| Patent | Title | Area | Cited by | Status |
|---|---|---|---|---|
| US5578984A | Tire air pressure reduction detecting method and apparatus | Performing Operations; Transporting | 31 | Expired |
| US4906609A | Fabrication of superconducting oxide wires by powder-in-tube method | Emerging Cross-Sectional Technologies | 29 | Expired |
| US4849282A | Prestressing steel material | Emerging Cross-Sectional Technologies | 15 | Expired |
| US4506109A | Al-stabilized superconducting wire and the method for producing the same | Emerging Cross-Sectional Technologies | 10 | Expired |
| US4614135A | Stripping device for stripping coated wire | Electricity | 9 | Expired |
| US5112802A | Superconducting ceramics elongated body and method of manufacturing the same | Emerging Cross-Sectional Technologies | 8 | Expired |
| US5144039A | Process for producing optically active alcohol | Chemistry; Metallurgy | 2 | Expired |
| US7989702B2 | Sealing-end structure for superconducting cable | Emerging Cross-Sectional Technologies | 0 | Active |
Source: USPTO / EPO open patent data. Counts and citation impact are objective bibliographic measures.