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GRAU GMBH

Overview
  • Total Patents
    85
About

GRAU GMBH has a total of 85 patent applications. Its first patent ever was published in 1985. It filed its patents most often in Germany, EPO (European Patent Office) and United States. Its main competitors in its focus markets transport, machines and mechanical elements are HALDEX BRAKE PROD GMBH & CO KG, KNORR BREMSE SYSTEMS FOR COMMERCIAL VEHICLES LTD and HALDEX BRAKE PROD GMBH.

Patent filings in countries

World map showing GRAU GMBHs patent filings in countries
# Country Total Patents
#1 Germany 55
#2 EPO (European Patent Office) 20
#3 United States 9
#4 Brazil 1

Patent filings per year

Chart showing GRAU GMBHs patent filings per year from 1900 to 2020

Focus industries

Top inventors

# Name Total Patents
#1 Blanz Roland 35
#2 Sulzyc Georg 15
#3 Gruener Hans 9
#4 Schaefer Guenter 6
#5 Sulzyc Jerzy 5
#6 Venghaus Horst 3
#7 Hilberer Eduard 3
#8 Sulzyc J 3
#9 Sulzyc George 2
#10 Sulzyc Jercy 2

Latest patents

Publication Filing date Title
DE19710814C1 Compressed air processor for air generator in motor vehicles
DE19710059C1 Compressed air processor for air generator in motor vehicles
DE19700243C1 Compressed air processing device for compressed air systems in motor vehicles
DE19649498C1 Compressed air preparation device for road vehicle compressed air user
DE19643975C1 Booster for vehicle hydraulic control line, especially brakes or clutch
DE19638226C1 Control device for a compressed air supply system of a motor vehicle
DE19636946C1 Constructional unit for controlling lift axle on multi-axle lorry
DE19636002C1 Level regulating valve for automatic height maintenance of lorry with air springing
DE19629975C1 Air-brake system for commercial vehicle with air suspension
DE19607619C1 Level control valve for automatically maintaining the vehicle height of a commercial vehicle with air suspension
US5678900A Unloader for a source of air under pressure on vehicles
DE19546324A1 Control block for an air suspension system
DE19544622C1 Control system for vehicle with adjustable pneumatic suspension
DE19544621C1 Compressed air treatment device for automotive compressed air systems
DE19530260A1 Air suspension system for vehicles
DE19519695C1 Valve for brake systems in motor vehicles
DE19510792C1 Switching valve for raising and lowering vehicle superstructure
DE19509356A1 Amplifiers for hydraulic control lines on motor vehicles
DE19504296C1 Air spring valve with fine adjustment
DE4445960C1 Brake cylinder for a compressed air-operated vehicle brake