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E H HUGO GREFFENIUS DIPL ING D

Overview
  • Total Patents
    13
About

E H HUGO GREFFENIUS DIPL ING D has a total of 13 patent applications. Its first patent ever was published in 1934. It filed its patents most often in Germany. Its main competitors in its focus markets machines, chemical engineering and engines, pumps and turbines are GUILIN SHENGXING MACHINERY MFG CO LTD, GRUBBENS & CO AKTIEBOLAG and HOVEX BV.

Patent filings in countries

World map showing E H HUGO GREFFENIUS DIPL ING Ds patent filings in countries
# Country Total Patents
#1 Germany 13

Patent filings per year

Chart showing E H HUGO GREFFENIUS DIPL ING Ds patent filings per year from 1900 to 2020

Top inventors

# Name Total Patents
#1 Greffenius Dipl-Ing Dr-Ing E H 4

Latest patents

Publication Filing date Title
DE840778C Combined sorting machine for grain
DE821755C Device for grinding with roller bodies
DE853706C Cleaning system, e.g. B. in grain milling
DE854612C Process for the operation of centrifugal separators of pneumatic suction and compressed air systems in automatic mills and the corresponding device
DE821584C Process for the ventilation of milling machines
DE736467C Process for cooling the ground material when grinding in toothed disk mills
DE714304C Toothed disk mill
DE686293C Toothed disk mill
DE683672C Toothed disk mill
DE707893C Dust collector
DE678628C Dedusting device with pre- and post-separator
DE717477C Electric centrifugal gas cleaner
DE647590C Two-stroke internal combustion engine with a working cylinder that is open on one side and moves back and forth on a stationary piston