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AKERMANS VERKSTAD AB

Overview
  • Total Patents
    84
About

AKERMANS VERKSTAD AB has a total of 84 patent applications. Its first patent ever was published in 1964. It filed its patents most often in Sweden, Norway and Finland. Its main competitors in its focus markets mechanical elements, civil engineering and engines, pumps and turbines are LIEBHERR FRANCE SAS, VIGHOLM BO and CINOTTO HYDRAULIC.

Patent filings per year

Chart showing AKERMANS VERKSTAD ABs patent filings per year from 1900 to 2020

Top inventors

# Name Total Patents
#1 Tordenmalm Lars Oesten 13
#2 Olofsson Bertil 10
#3 Bruhn Ingvar 6
#4 Carlqvist Ola 5
#5 Ripa Bjoern Stefan 4
#6 Tordenmalm L O 4
#7 Olsson Karl Oscar 4
#8 Isaksson Karl 4
#9 Tordenmalm Lars Osten 4
#10 Nilsson Nils Bo 3

Latest patents

Publication Filing date Title
FI875629A0 Foerfarande och anordning foer graevmaskin.
EP0327558A1 Method and device for a construction machine, particularly an excavator
EP0292473A1 Method for reducing the piston speed, especially in the piston and cylinder assemblies of an excavating machine, and device for carrying out the method.
EP0201582A1 Device for speed setting of an internal combustion engine, particularly diesel engine, in earth workers.
EP0116815A2 Control lever arrangement
SE8107566L Stump remover with a covered hydraulic and blade unit between two gripping claws.
DE3030175A1 HYDRAULIC CIRCLE
EP0022105A1 A device for reducing piston velocity in a cylinder
US4475333A Devices for limiting the power output of a hydraulic assembly
SE8000848L Hydraulic system for excavators with electrical interconnection valve that when activating crawler motors and industrial hydraulics connects together the pump outlet and the control circuit
EP0016896A2 An apparatus for restricting the velocity of a hydraulic piston at its end positions
US4207740A Valve blocks, in particular for hydraulic excavators
DE2920235A1 VALVE BLOCK, ESPECIALLY FOR HYDRO EXCAVATORS
NL7811881A Excavator with lockable pendel axle.
SE7808792L Bucket-shaking device
SE7806328L Device for damping the movement of a piston as it approaches the end position in a cylinder
DE2605139A1 DEVICE ON EXCAVATORS
GB1495822A Speed regulators for internal combustion engines particularly diesel engines in earth workers
US3630121A Excavating machines
DE1634230B1 Device for moving the leader of a pile driver