Friehmelt; Rainer
Patent Applications and Registrations
Patent applications and USPTO patent grants for Friehmelt; Rainer.The latest application filed is for "pyrogenically prepared silicon dioxide compacted to give crusts".
- Friehmelt; Rainer - Koln DE
| Patent | Date |
|---|---|
| Process for preparation of rubber mixtures containing silicon dioxide Grant 8,252,853 - Friehmelt , et al. August 28, 2 | 2012-08-28 |
| Pyrogenically prepared silicon dioxide compacted to give crusts Grant 7,842,269 - Schachtely , et al. November 30, 2 | 2010-11-30 |
| Pyrogenically Prepared Silicon Dioxide Compacted To Give Crusts App 20100179269 - Schachtely; Uwe ; et al. | 2010-07-15 |
| Process for Preparation of Rubber Mixtures Containing Silicon Dioxide App 20100010116 - Friehmelt; Rainer ; et al. | 2010-01-14 |
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