Unimetal Co., Ltd.
10Patents
0Active
10Granted
30Portfolio score
Filing activity: Mar 4, 1986 → Jan 25, 1996
Most-cited patents
| Patent | Title | Area | Cited by | Status |
|---|---|---|---|---|
| US5163785A | Method for sealing connections between sheet piles, and sheet piles employing said method | Fixed Constructions | 13 | Expired |
| US5143315A | Method and device for forming coils of metal wire | Performing Operations; Transporting | 5 | Expired |
| US5868234A | Transfer device for transferring solid articles | Performing Operations; Transporting | 4 | Expired |
| US4726212A | Machine for straightening and stress-relieving steel rails | Performing Operations; Transporting | 4 | Expired |
| US5562753A | Method and installation for producing molten steel from ferrous materials rich in carbonaceous materials | Emerging Cross-Sectional Technologies | 3 | Expired |
| US5287382A | Wall electrode for a DC electric metallurgical furnace | Emerging Cross-Sectional Technologies | 2 | Expired |
| US4755238A | Straightened rail | Performing Operations; Transporting | 2 | Expired |
| US5291513A | Method and device for exhausting gases or fumes from a metallurgical container and an electric furnace provided with said exhaust device | Emerging Cross-Sectional Technologies | 1 | Expired |
| US5152952A | Device for unclogging a lance intended to be inserted into a metallurgical vessel | Chemistry; Metallurgy | 1 | Expired |
| US4978499A | Soft steel for machine cutting and method of producing it | Chemistry; Metallurgy | 1 | Expired |
Source: USPTO / EPO open patent data. Counts and citation impact are objective bibliographic measures.