HF

Helmut Fröhlich

Basf Se: 1 patents #378 of 1,093Top 35%
📍 Oelde, DE: #4 of 11 inventorsTop 40%
Overall (2003): #214,817 of 273,478Top 80%
1
Patents 2003

Issued Patents 2003

Showing 1–1 of 1 patents

Patent #TitleCo-InventorsDate
6538135 Method for producing 4-amino-5-chloro-1-phenyl pyridazinone-(6) Hans Rupert Merkle, Klaus Herbig, Erich Fretschner 2003-03-25