The Japan Iron and Steel Federation
8Patents
1Active
8Granted
29Portfolio score
Filing activity: May 19, 1980 → Sep 10, 2004 · 1 expiring within 5 years
Most-cited patents
| Patent | Title | Area | Cited by | Status |
|---|---|---|---|---|
| US4324759A | Apparatus for treating waste gas by irradiation with electron beams | Emerging Cross-Sectional Technologies | 16 | Expired |
| US4596642A | Process and apparatus for treating effluent gas by irradiation with electron beams | Performing Operations; Transporting | 8 | Expired |
| US5799275A | Speech recognizing device and method assuming a current frame is an end point of a current reference pattern | Physics | 5 | Expired |
| US6033528A | Process for making blast furnace coke | Chemistry; Metallurgy | 4 | Expired |
| US7645362B2 | Method for pretreating and improving coking coal quality for blast furnace coke | Chemistry; Metallurgy | 2 | Active |
| US5735917A | Method of promoting carbonization in the door region of a coke oven and oven door therefor | Chemistry; Metallurgy | 1 | Expired |
| US5720116A | Apparatus for drying and heating coal to be charged to coke oven | Chemistry; Metallurgy | 1 | Expired |
| US6797122B1 | Coke oven and method of operating the same | Chemistry; Metallurgy | 0 | Expired |
Source: USPTO / EPO open patent data. Counts and citation impact are objective bibliographic measures.