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SRM HYDROMEKANIK AB

Overview
  • Total Patents
    369
About

SRM HYDROMEKANIK AB has a total of 369 patent applications. Its first patent ever was published in 1954. It filed its patents most often in Canada, Germany and United States. Its main competitors in its focus markets mechanical elements, transport and machines are JAPAN AUTOMATIC TRANSMISSION, HOWARD FREDERICK HOBBS and TRANSMISSION CVTCORP INC.

Patent filings in countries

World map showing SRM HYDROMEKANIK ABs patent filings in countries

Patent filings per year

Chart showing SRM HYDROMEKANIK ABs patent filings per year from 1900 to 2020

Top inventors

# Name Total Patents
#1 Ahlen Karl G 73
#2 Ahlen Karl Gustav 58
#3 Ahlen K G 35
#4 Ahlen K 28
#5 Aahlen Karl Gustav 20
#6 Bergstrom Per-Olof 15
#7 Supanich Joseph 12
#8 Gustav Ahlen Karl 10
#9 Karl Gustav Ahlen 9
#10 Wahlsten Gunnar 7

Latest patents

Publication Filing date Title
CA1213755A Power shift planetary gear transmission
GB2097895A Cooling of hydrodynamic clutch-operated, brakes
GB2090634A Planetary gear transmission
US4559849A Power shift planetary gear transmission
CA1117451A Multi-speed planetary gear
JPS5544183A Fluid valve device
CA1119979A Multiple disc clutch
CA1109296A Hydraulic valve system
CA1112905A Hydromechanical transmission
JPS5563942A Car braking method
ZA7904292B Hydromechanical transmissions
US4347761A Hydromechanical transmissions
US4262554A Hydraulic valve system for controlling particularly a vehicle gearbox
US4301904A Multiple disc clutch
IT7925120D0 Dual pump installation for vehicle automatic transmission - uses pump at higher pressure delivering oil to other pump via non-return valve, system being workable with either or both pumps
IT7925121D0 Vehicle transmission control system - is of electronic type which uses microprocessor and programmable memory systems
SE7906728L Hydrodynamic transmission
SE7906727L Method for engine-braking a vehicle
CA1075933A Control arrangement for variable power transmission
US4314487A Braking method for vehicle transmission