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GRATZMULLER J

Overview
  • Total Patents
    149
About

GRATZMULLER J has a total of 149 patent applications. Its first patent ever was published in 1958. It filed its patents most often in Canada, France and Sweden. Its main competitors in its focus markets electrical machinery and energy, mechanical elements and environmental technology are GRATZMULLER CLAUDE, GRATZMULLER JEAN LOUIS and GRATZMULLER.

Patent filings per year

Chart showing GRATZMULLER Js patent filings per year from 1900 to 2020

Top inventors

# Name Total Patents
#1 Gratzmuller Jean L 83
#2 Gratzmuller J 29
#3 Gratzmuller J L 6
#4 Grattsmyuller Zhan Lui 3
#5 Grattsmyuller Zhan-Lui 2
#6 Zhan-Lui Grattsmyuller 1

Latest patents

Publication Filing date Title
SU925258A3 Hydraulic valve control device
CA1091577A Hydraulically controlled safety valve
ZA7603868B Hydraulic jacks
CA1047585A Protracted-blast electric circuit-breaker for alternating currents
CA1030581A Electric circuit-breaker for alternating currents
CA1031021A High speed drain device in hydraulic control circuits
CA947617A Fluid control device
US3766343A High power hydraulic control systems for an electric switch
ZA7003545B Circuit breaking technique and device
CA613454A Hydraulic actuator control
CA604498A Circuit breaker
CA608972A Hydraulically actuated electric circuit-breakers
CA625064A Sealing devices
CA597537A Flow-rate responsive switching-valve for hydraulic circuits
CA516036A Hydropneumatic accumulator
CA578036A Crank-shaft and crank-case combination
CA546192A Pressure regulating valves
CA831609A Electrical rupturing assembly
CA731782A Electro-magnetic control device
CA547080A Fluid-tight assembly