FB

Friedhelm Bultmann

PA Passavant-Werke Ag: 1 patents #6 of 20Top 30%
Overall (All Time): #3,818,439 of 4,157,543Top 95%
1
Patents All Time

Issued Patents All Time

Patent #TitleCo-InventorsDate
5190672 Method for thermal disposal of sewage sludge Hubert Coenen, Helmut Hubert, Matthias Brunner 1993-03-02