DL

Donald A. Longhurst

PA Polysius Ag: 3 patents #7 of 115Top 7%
KA Krupp Polysius Ag: 1 patents #77 of 180Top 45%
Overall (All Time): #1,238,961 of 4,157,543Top 30%
4
Patents All Time

Issued Patents All Time

Patent #TitleCo-InventorsDate
7971815 Milling station and method for grinding milling material Ludger Schulte, Franz-Josef Zurhove 2011-07-05
7712611 Apparatus for controlling the separation of particulate material Franz-Josef Zurhove 2010-05-11
6889843 Apparatus and methods for controlling the separation of particulate material Franz-Josef Zurhove 2005-05-10
5351894 Method for the comminution of brittle material for grinding Norbert Patzelt 1994-10-04