Issued Patents All Time
Showing 1–21 of 21 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 11013760 | Polyguanidine polymers and methods of use thereof | Alexander Pretsch, Christoph Wiesner, Ralph Hollaus, Miroslav Genov | 2021-05-25 |
| 10335431 | Method for producing polyguanidines | Alexander Pretsch, Christoph Wiesner, Ralph Hollaus, Miroslav Genov | 2019-07-02 |
| 9567294 | Bioactive polymers | Alexander Pretsch, Christoph Wiesner, Heinz Burgmann | 2017-02-14 |
| 7638088 | Method and device for producing pig iron and/or pig iron intermediate products | — | 2009-12-29 |
| 7425230 | Method and device for producing pig iron and/or pig iron intermediate products | — | 2008-09-16 |
| 7144447 | Method and device for treating particulate material | Johannes Schenk, Albert Zschetzsche | 2006-12-05 |
| 6488738 | Method of producing molten metal | — | 2002-12-03 |
| 6454833 | Process for producing liquid pig iron or semifinished steel products from iron-containing materials | Johannes Schenk, Werner Kepplinger | 2002-09-24 |
| 6315943 | Apparatus for producing molten metal | — | 2001-11-13 |
| 6273933 | Method for blowing fine particles containing metal oxide into a reducing gas | Leopold Werner Kepplinger, Franz Hauzenberger, Bernhard Rinner, Felix Wallner, Peter Brandl +2 more | 2001-08-14 |
| 6264725 | Method for producing liquid pig iron or steel fabricated materials and installation for implementing said method | Josef Stockinger | 2001-07-24 |
| 6220790 | Process for conveying fine-grained solid | Johannes Schenk, Walter Rainer Kastner | 2001-04-24 |
| 6202576 | Process for recycling fine-particle solids discharged from a reactor vessel with a gas | Johannes Schenk, Josef Stockinger | 2001-03-20 |
| 5944871 | Process for the production of molten pig iron or steel pre-products and a plant for carrying out the process | — | 1999-08-31 |
| 4874037 | Apparatus for cooling a hot product gas | Gero Papst | 1989-10-17 |
| 4805880 | Fluidized bed arrangement for the production of molten pig iron and steel pre-products | Rolf Hauk, Gero Papst, Klaus Langner, Werner Kepplinger, Leopold Seirlehner | 1989-02-21 |
| 4728360 | Process for the production of molten pig iron and steel pre-products | Rolf Hauk, Gero Papst, Klaus Langner, Werner Kepplinger, Leopold Seirlehner | 1988-03-01 |
| 4708643 | Apparatus for charging a shaft furnace for burning carbonaceous material | Gerhard Fugger, Jaroslav Mraz, Horst Mailander, Ernst Rottenmanner, Norbert Rauber +1 more | 1987-11-24 |
| 4605205 | Arrangement comprising a gasifier and a direct reduction furnace | Klaus Langner, Gero Papst, Rolf Hauk | 1986-08-12 |
| 4409023 | Process for directly making liquid pig-iron from coarse iron ore | Ralph Weber, Bernt Rollinger, Rolf Hauk, Bernhard Rinner | 1983-10-11 |
| 4392637 | Metallurgical melting apparatus with a blow-nozzle or burner capable of swivelling in different directions | Ralph Weber, Bernt Rollinger, Bernhard Rinner | 1983-07-12 |