Learn more

KOVAMETALLI AB OY

Overview
  • Total Patents
    34
About

KOVAMETALLI AB OY has a total of 34 patent applications. Its first patent ever was published in 1960. It filed its patents most often in Switzerland, Austria and Germany. Its main competitors in its focus markets transport, machines and materials and metallurgy are SPIKESAFE OY, BRIDGESTONE FIRESTONE NORTH AMERICAN TIRE LLC and DOUGLAS JEFFREY P.

Patent filings in countries

World map showing KOVAMETALLI AB OYs patent filings in countries

Patent filings per year

Chart showing KOVAMETALLI AB OYs patent filings per year from 1900 to 2020

Focus industries

Top inventors

# Name Total Patents
#1 Lennart Hakka 6
#2 Haekkae Lennart Dipl Ing 4
#3 Hakka Lennart 4
#4 Lennart Haekkae Dipl-Ing 3
#5 Lennart Haekkae 3
#6 Hakka Ernest J 2
#7 Hakka Lennart Dipl Ing 2
#8 Haekkae L 2
#9 Aapo Kirvesniemi 1
#10 Haekkae Lennart 1

Latest patents

Publication Filing date Title
FR1467600A Hard metal manufacturing process
US3334678A Skid-resistant means for pneumatic tires
FR1429015A Non-slip tire studs
FR1388414A non-slip element for pneumatic tires of vehicles and the like
US3230996A Anti-skid means for vehicle tires and the like
GB987745A Improvements in anti-skid studs to be partially embedded in the treads of vehicle wheel rubber tyres
FR1355855A Method for embedding a non-slip, stud-shaped member in a pneumatic tire for vehicles or the like
GB974280A Improvements in studs for fitting in vehicle tyre treads
CA772457A Skid-resistant means for pneumatic tires
CA876519A Anti-skid means for vehicle tire and the like
CA750737A Anti-skid means for vehicle tires and the like
CA748694A Anti-skid device