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USPTO Patent Rankings Data through Sept 30, 2025
JD

Johann Doppstadt

DGDoppstadt Calbe Gmbh: 5 patents #1 of 2Top 50%
Velbert, DE: #2 of 17 inventorsTop 15%
Overall (2011): #11,649 of 364,097Top 4%
6 Patents 2011

Issued Patents 2011

Showing 1–6 of 6 patents

Patent #TitleCo-InventorsDate
7992812 Screening device Horst Berger 2011-08-09
7980502 Cutting tool for comminuting devices Horst Berger 2011-07-19
7959098 Hammer for a comminuting device Horst Berger 2011-06-14
7938350 Knife holder for comminution devices Horst Berger 2011-05-10
7909277 Comminution device Horst Berger 2011-03-22
7882958 Drum sieve machine Horst Berger 2011-02-08