Issued Patents All Time
Showing 1–5 of 5 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 8440161 | Ammonium paratungstate hydrates and ammonium paratungstate decahydrate | Viktor Stoller, Michael Erb, Juliane Meese-Marktscheffel, Klaus-Jürgen Marschall, Frank Schrumpf | 2013-05-14 |
| 8226923 | Method for production of ammonium paratungstate tetrahydrate and highly pure ammonium paratungstate tetrahydrate | Viktor Stoller, Michael Erb, Juliane Meese-Marktscheffel, Wolfgang Mathy | 2012-07-24 |
| 8216533 | Method for producing ammonium paratungstate hydrates and ammonium paratungstate decahydrate | Viktor Stoller, Michael Erb, Juliane Meese-Marktscheffel, Klaus-Jürgen Marschall, Frank Schrumpf | 2012-07-10 |
| 8168155 | Method for production of ammonium paratungstate tetrahydrate and highly pure ammonium paratungstate tetrahydrate | Viktor Stoller, Michael Erb, Juliane Meese-Marktscheffel, Wolfgang Mathy | 2012-05-01 |
| 5993756 | Sodium tungstate preparation process | — | 1999-11-30 |