| 11795260 |
Bulk material comprising solid diisocyanates and prepolymers containing urethane groups obtainable therefrom |
Michael Merkel, Anna-Marie Zorn, Rainer Bellinghausen, Pascal Scherpian |
2023-10-24 |
| 10307727 |
Method for processing hydrogen chloride from isocyanate preparation |
Martin Ehrig, Johannes Leonhäuser, Dirk Weiβenberg |
2019-06-04 |
| 10294198 |
Method for producing xylylene diisocyanates in the gaseous phase |
Reinhard Halpaap, Josef Sanders, Frank Richter, Elsa Karoline Schadlich, Armin Schymura +3 more |
2019-05-21 |
| 9422162 |
Carbon nanotube agglomerate |
Heiko Hocke, Elmar Bramer-Weger |
2016-08-23 |
| 8398949 |
Carbon nanotube powder, carbon nanotubes, and processes for their production |
Helmut Meyer, Heiko Hocke, Martin Schmid, Elmar Bramer-Weger, Matthias Voetz +4 more |
2013-03-19 |
| 7425234 |
Iron oxide pigments |
Leslaw Mleczko, Ulrich Meisen, Georg Lamp |
2008-09-16 |
| 6322745 |
Direct smelting vessel and direct smelting process |
David Leigh, Peter Damian Burke, Cecil Peter Bates |
2001-11-27 |
| 5571475 |
Reducing and smelting furnace having filter layer |
— |
1996-11-05 |
| 5403378 |
Method and apparatus for protecting an injection device disposed in a hot blast conduit of a blast furnace |
William Wells |
1995-04-04 |
| 5364448 |
Process for the production of liquid metal from fine-grain metal oxide particles and reducing and smelting furnace for carrying out the process |
— |
1994-11-15 |
| 4949940 |
Charging arrangement for shaft furnaces, in particular blast furnaces |
— |
1990-08-21 |
| 4946498 |
Process for the production of steel from fine ore hot briquetted after fluidized bed reduction |
— |
1990-08-07 |
| 4881972 |
Process for feeding heat energy into a molten metal bath |
William Wells |
1989-11-21 |
| 4852858 |
Charging material preheater for preheating charging material for a metallurgical smelting unit |
— |
1989-08-01 |
| 4736930 |
Closure apparatus for a tap hole |
William Wells |
1988-04-12 |
| 4586897 |
Installation including a heating furnace for continuous castings, which are cut to length, from a continuous casting installation |
Herbert Rothe |
1986-05-06 |
| 4448402 |
Apparatus for directly making liquid pig-iron from coarse iron ore |
Bernt Rollinger, Rolf Hauk, Michael J. Nagle, Jr., Bernhard Rinner |
1984-05-15 |
| 4409023 |
Process for directly making liquid pig-iron from coarse iron ore |
Bernt Rollinger, Rolf Hauk, Michael Nagl, Bernhard Rinner |
1983-10-11 |
| 4392637 |
Metallurgical melting apparatus with a blow-nozzle or burner capable of swivelling in different directions |
Bernt Rollinger, Michael Nagl, Bernhard Rinner |
1983-07-12 |
| 4389043 |
Metallurgical melting and refining unit |
William Wells |
1983-06-21 |
| 4317677 |
Process for producing liquid crude iron and reduction gas |
Emil Elsner, Walter Maschlanka, Bernt Rollinger, Gerhard Sanders |
1982-03-02 |