Issued Patents All Time
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 8377994 | Use of roll compacted pyrogenically produced silicon dioxide in pharmaceutical compositions | Margarete Drechsler, Ralph Hofmann | 2013-02-19 |
| 8333914 | Dry liquids, and processes for their preparation | Holger Pitsch, Josef Piroth, Thomas Riedemann, Heike Riedemann, Frank Dieter Huenig | 2012-12-18 |
| 7255735 | Surface-modified silicon dioxide-titanium dioxide mixed oxides | Jurgen Meyer, Kai Schumacher, Steffen Hasenzahl, Heike Riedemann | 2007-08-14 |
| 5660613 | Anaerobic/aerobic decontamination of DDT contaminated soil by repeated anaerobic/aerobic treatments | Roger L. Bernier, Neil C. C. Gray | 1997-08-26 |
| 5061489 | Insecticidal Bacillus thuringiensis strains with activity against lepidoptera | Roger L. Bernier, Martyn D. Collins | 1991-10-29 |