Issued Patents All Time
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 10032564 | Method for the production of valve metal powders | Helmut Haas, Christoph Schnitter, Elisabeth Droste | 2018-07-24 |
| 8801829 | Method for production of niobium and tantalum powder | Helmut Haas, Tadashi Komeya, Nobuyuki Sato | 2014-08-12 |
| 7898794 | Tantalum powder for the production of solid electrolyte capacitors | Helmut Haas | 2011-03-01 |
| 7824463 | Method for the production of niobium and tantalum powder | Helmut Haas, Tadashi Komeya, Nobuyuki Sato | 2010-11-02 |