Issued Patents All Time
Showing 1–25 of 25 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 6166278 | Use of naturally acid smectites to remove olefins from aromatics or aromatic mixtures and processes therewith | Thomas Engelhardt, Uwe Flessner, Werner Zschau | 2000-12-26 |
| 6133497 | Catalyst for removing olefins from aromatic compounds or mixtures thereof | Thomas Engelhardt, Uwe Flessner, Werner Zschau | 2000-10-17 |
| 5917069 | Adsorbent for treatment of oils and/or fats | Wolfgang Buckl, Hermann Ebert, Helmut Eicke, Norbert Schall, Werner Zschau | 1999-06-29 |
| 5814209 | Method for ecological utilization of acid effluents of fuller's earth | Klaus Schurz, Hans Buckl, Wolfgang Eisenschmid | 1998-09-29 |
| 5750461 | Iodine adsorption agent | Thomas Engelhardt | 1998-05-12 |
| 5719098 | Sorbent based on smectitic clay minerals reacted with alkaline ion exchanger | Rolf Ahlers | 1998-02-17 |
| 5648306 | Process for producing sorbents based on smectites to absorb liquids | Otto Haubensak, Max Eisgruber | 1997-07-15 |
| 5637552 | Process for producing neutral to alkali color developer pigments | Friedrich Ruf | 1997-06-10 |
| 5584601 | Process for production of cut-off walls | Norbert Schall | 1996-12-17 |
| 5480578 | Detergent additive for detergents containing a fabric softener | Rüdiger Hirsch, Norbert Schall | 1996-01-02 |
| 5450817 | Process for production of sorbents for uptake of liquids | Norbert Schall, Rolf Ahlers, Otto Haubensak, Max Eisgruber | 1995-09-19 |
| 5402752 | Process for production of sorbents based on smectite for uptake of liquids | Otto Haubensak | 1995-04-04 |
| 5401568 | Coated fillers having silicic acid for heat-sensitive recording materials | Friedrich Ruf | 1995-03-28 |
| 5281864 | Implementation of the IEEE 1149.1 boundary-scan architecture | Norbert Hummer | 1994-01-25 |
| 5105716 | Weapon throughbearing through an armored turret, especially on a military tank | Uwe Sprafke | 1992-04-21 |
| 4748009 | Method of recovering vanadium from vanadium-containing materials with at least 6 wt % oxidic vanadium compounds | Siegfried Sattelberger, Rudolf Fichte, Hans-Joachim Retelsdorf | 1988-05-31 |
| 4737187 | Method of treating nickel-containing and vanadium-containing residues | Hans Karl Hess, Siegfried Sattelberger | 1988-04-12 |
| 4684506 | Master alloy for the production of titanium-based alloys and method for producing the master alloy | Hermann Andorfer | 1987-08-04 |
| 4662936 | Method of treating nickel-containing and vanadium-containing residues | Hans Karl Hess, Siegfried Sattelberger | 1987-05-05 |
| 4645651 | Method of producing vanadium compounds from vanadium-containing residues | Hans Karl Hess, Siegfried Sattelberger | 1987-02-24 |
| 4623386 | Carbothermal method of producing cobalt-boron and/or nickel-boron | Hans-Joachim Retelsdorf, Rudolf Fichte, Siegfried Sattelberger | 1986-11-18 |
| 4569691 | Method of making ferroboron and ferroborosilicon alloys and the alloys made by this method | Rudolf Fichte, Friedrich Breuer, Hans-Joachim Retelsdorf | 1986-02-11 |
| 4347084 | Electrodes of sintered tantalum powder of fine grain size and process of production | Dieter Behrens | 1982-08-31 |
| 4231790 | Process for the preparation of tantalum and niobium powders of improved efficiency | Dieter Behrens | 1980-11-04 |
| 4229217 | Method of producing porous metal bodies for use in the electronic industry | — | 1980-10-21 |