Voest-Alpine
340Patents
0Active
340Granted
41Portfolio score
Filing activity: Dec 5, 1977 → Jan 20, 1998
Most-cited patents
| Patent | Title | Area | Cited by | Status |
|---|---|---|---|---|
| US4247150A | Bit arrangement for a cutting tool | Fixed Constructions | 89 | Expired |
| US4392063A | Turbine installation comprising a turbine installed in a duct | Emerging Cross-Sectional Technologies | 53 | Expired |
| US4537448A | Excavating head with pick-controlled water supply | Fixed Constructions | 43 | Expired |
| US4836510A | Metallurgical plant | Emerging Cross-Sectional Technologies | 37 | Expired |
| US4551051A | Apparatus for charging a rotary kiln with pneumatic tires | Mechanical Engineering; Lighting; Heating | 29 | Expired |
| US4542942A | Bit holder equipped with a spraying device | Fixed Constructions | 28 | Expired |
| US4448402A | Apparatus for directly making liquid pig-iron from coarse iron ore | Chemistry; Metallurgy | 26 | Expired |
| US4571796A | Lathe | Emerging Cross-Sectional Technologies | 26 | Expired |
| US4580428A | Hot-rolling mill and process for producing sheet metal | Performing Operations; Transporting | 24 | Expired |
| US4514912A | Process for drying of organic solid materials, particularly brown coals | Mechanical Engineering; Lighting; Heating | 23 | Expired |
| US4913742A | Process of making cement clinker and apparatus for performing said process | Emerging Cross-Sectional Technologies | 23 | Expired |
| US4260280A | Road roller | Fixed Constructions | 23 | Expired |
| US4756729A | Apparatus for separating dust from gases | Performing Operations; Transporting | 23 | Expired |
| US4396421A | Method of, and arrangement for, producing molten pig iron or steel pre-material | Chemistry; Metallurgy | 22 | Expired |
| US4889323A | Mill arrangement with primary gas mixing means | Emerging Cross-Sectional Technologies | 22 | Expired |
| US4534405A | Method and an arrangement for inspecting the surface of steel stock having a temperature above the Curie point | Physics | 22 | Expired |
| US4411148A | Press brake | Performing Operations; Transporting | 21 | Expired |
| US4779466A | Method and apparatus for continuously taking a hot gas sample to be analyzed from a reaction chamber | Physics | 21 | Expired |
| US4471356A | Signal message transmitting system for a succession of mobile units | Electricity | 20 | Expired |
| US4588437A | Method for producing molten pig iron or steel pre-products in a melt-down gasifier | Emerging Cross-Sectional Technologies | 20 | Expired |
| US4605205A | Arrangement comprising a gasifier and a direct reduction furnace | Mechanical Engineering; Lighting; Heating | 19 | Expired |
| US4822411A | Integrated steel mill arrangement | Emerging Cross-Sectional Technologies | 19 | Expired |
| US4303523A | Dewatering drum | Emerging Cross-Sectional Technologies | 19 | Expired |
| US4756200A | Probe for extracting hot sample gas | Physics | 19 | Expired |
| US4502227A | Process for continuously drying and upgrading of organic solid materials such as, for example, brown coals | Chemistry; Metallurgy | 19 | Expired |
Source: USPTO / EPO open patent data. Counts and citation impact are objective bibliographic measures.