Issued Patents All Time
Showing 1–23 of 23 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 10563286 | Electroslag remelting process and melting vessel | Henrik FRANZ, Ulrich Biebricher | 2020-02-18 |
| 9538587 | Method and device for closed-loop control of the electrode gap in a vacuum arc furnace | Ralf Oehler, Frank-Werner Hoffmann | 2017-01-03 |
| 6540012 | Electroslag remelting plant with a mould and a hood | Arno Niebling, Ulrich Biebricher | 2003-04-01 |
| 6533990 | Apparatus for distilling molten baths | Ivaylo Popov, Hans-Jürgen Kemmer | 2003-03-18 |
| 6443212 | Method and apparatus for the production of precision castings by centrifugal casting | Alok Choudhury, Matthias Blum, Georg Jarczyk, Franz Hugo, Hans-Gunther Fellmann +3 more | 2002-09-03 |
| 6408929 | Method and apparatus for the production of precision castings by centrifugal casting with controlled solidification | Alok Choudhury, Matthias Blum, Georg Jarczyk, Marek Gorywoda, David Francis Lupton | 2002-06-25 |
| 6250366 | Method for the production of precision castings by centrifugal casting with controlled solidification | Alok Choudhury, Matthias Blum, Georg Jarczyk, Marek Gorywoda, David Francis Lupton | 2001-06-26 |
| 6027563 | Method and apparatus for the oriented solidification of molten silicon to form an ingot in a bottomless crystallization chamber | Alok Choudhury, Matthias Blum, Georg Jarczyk | 2000-02-22 |
| 5991328 | Crucible for the inductive melting or superheating of metals, alloys, or other electrically conductive materials | Alok Choudhury, Matthias Blum, Wilfried Goy | 1999-11-23 |
| 5950706 | Process for manufacture of cast parts made of reactive metals and reusable casting forms for performing the process | Alok Choudhury, Matthias Blum, Georg Jarczyk | 1999-09-14 |
| 5690891 | Process for the production of alloys in an inductively heated cold-walled crucible | Alok Choudhury, Matthias Blum, Georg Jarczyk | 1997-11-25 |
| 5626179 | Process for manufacture of castings of reactive metals | Alok Choudhury, Matthias Blum, Georg Jarczyk | 1997-05-06 |
| 5480127 | Apparatus for the melting and treatment of metal | Alok Choudhury, Jochen Schumann, Jan-Erwin Schindler | 1996-01-02 |
| 5234486 | Method for remelting reactive metals | Alok Choudhury, Norbert Ludwig | 1993-08-10 |
| 4788359 | Process and apparatus for recovering 1,2-dichloroethane from off-gas | Kurt Schuchardt, Erich Niehus, Harald Adam | 1988-11-29 |
| 4774373 | Process for making 1,2-dichloroethane | Joachim Hundeck, Hans Hennen | 1988-09-27 |
| 4678482 | Process for purifying hydrogen chloride gas | Heinz-Joachim Muller, Elmar Lohmar | 1987-07-07 |
| 4672142 | Process for making 1,2-dichloroethane | Joachim Hundeck, Hans Hennen, Bernhard Kuxdorf, Herbert Pusche | 1987-06-09 |
| 4552727 | Cooling device | Kurt Schuchardt, Hans W. Neuss, Georg Pech | 1985-11-12 |
| 4396593 | Process for the production of tin(IV) chloride | Werner Schmidt, Nikolaus Niedzielski | 1983-08-02 |
| 4310713 | Production of 1,2-dichloroethane | Gunter Legutke, Gerhard H. Rechmeier, Kurt Schuchardt, Ernst Holler, Gunther Liesenfelder | 1982-01-12 |
| 4265837 | Production of 1,2-dichloroethane | Gunter Legutke, Kurt Schuchardt | 1981-05-05 |
| 4257850 | Purification of 1,2-dichloroethane recovered in the incomplete thermal cracking to vinyl chloride | Gerhard H. Rechmeier, Ulrich Roesnik | 1981-03-24 |