Issued Patents All Time
Showing 1–22 of 22 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 6952971 | Apparatus for measuring a mass flow | Karl Brotzmann, Hans Kopp, Karsten Schutte | 2005-10-11 |
| 6334265 | Process for the operation of a regenerator and regenerator | Andres Emmel, Dragan Stevanovic | 2002-01-01 |
| 6092300 | Process for the operation of a regenerator and regenerator | Andres Emmel, Dragan Stevanovic | 2000-07-25 |
| 5690164 | Method and regenerator for heating a gas | — | 1997-11-25 |
| 5577553 | Regenerator | — | 1996-11-26 |
| 5547016 | Method for heating a gas in a regenerator | — | 1996-08-20 |
| 5191802 | Device for measuring mass flow | — | 1993-03-09 |
| 5088331 | Apparatus for measuring a mass stream | — | 1992-02-18 |
| 5052918 | Method and a regenerator for heating gases | — | 1991-10-01 |
| 4849015 | Method for two-stage melt reduction of iron ore | Jonathan P. Moodie, Trenna R. Turner | 1989-07-18 |
| 4798624 | Method for the melt reduction of iron ores | Karl Brotzmann, Richard E. Turner, deceased | 1989-01-17 |
| 4789139 | Methods of and apparatus for constructing refractory brick linings on tuyere plates for metal treating vessels | Paul-Gerhard Mantey | 1988-12-06 |
| 4756647 | Metering slide for fine-grained solids | — | 1988-07-12 |
| 4700578 | Apparatus for measuring a bulk stream | — | 1987-10-20 |
| 4662798 | Method and a device for measuring and/or regulating the mass flow of solid particles | — | 1987-05-05 |
| 4561466 | Valve for supplying flow media | — | 1985-12-31 |
| 4407490 | Method and a means for introducing close-grained carbonaceous fuels into an iron melting bath | Karl Brotzmann | 1983-10-04 |
| 4330326 | Method and a means for introducing close-grained carbonaceous fuels into a molten iron bath | Karl Brotzmann | 1982-05-18 |
| 4322244 | Process for feeding carbon to an iron melt in a converter | Karl Brotzmann | 1982-03-30 |
| 4261551 | Method and means for supplying nozzles with gaseous and/or liquid hydrocarbons | — | 1981-04-14 |
| 4249719 | Tuyere for the injection of reaction gas | Helmut Knuppel, Karl Brotzmann, Ernst Fritz | 1981-02-10 |
| 4198230 | Steelmaking process | Karl Brotzmann | 1980-04-15 |