Issued Patents All Time
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 7901470 | Gasoline additives | Olaf Graupner, Matthias Mundt, Jurgen Louis, David Kendall, Nigel Peter Tait | 2011-03-08 |
| 5944887 | Transformation of crude halogenated copper phthalocyanine pigments into a useful pigmentary state | Frank Scherhag, Peter Bottcher | 1999-08-31 |
| 5932723 | Phase-directed preparation of metal-free phthalocyanine | Frank Scherhag, Ingo Klopp, Anette Hartmann | 1999-08-03 |