Issued Patents All Time
Showing 1–3 of 3 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 8209999 | Method of making silica-glass granule from pyrogenic silica powder | Kai Schumacher, Christian Schulze-Isfort, Mitsuru Ochiai | 2012-07-03 |
| 7351388 | Pyrogenically produced silicon dioxide powder | Kai Schumacher, Naruyasu Ishibashi, Hitoshi Kobayashi | 2008-04-01 |
| 7192461 | High concentration silica slurry | Toshio Morii | 2007-03-20 |