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EFDYN CORP

Overview
  • Total Patents
    24
About

EFDYN CORP has a total of 24 patent applications. Its first patent ever was published in 1967. It filed its patents most often in United States, Canada and Germany. Its main competitors in its focus markets mechanical elements, machines and transport are YAMAMOTO KOZO, BARRY CORP and TRAX JH LTD.

Patent filings in countries

World map showing EFDYN CORPs patent filings in countries
# Country Total Patents
#1 United States 11
#2 Canada 3
#3 Germany 3
#4 United Kingdom 2
#5 Switzerland 1
#6 France 1
#7 Japan 1
#8 Netherlands 1
#9 Sweden 1

Patent filings per year

Chart showing EFDYN CORPs patent filings per year from 1900 to 2020

Focus industries

# Industry
#1 Mechanical elements
#2 Machines
#3 Transport

Top inventors

# Name Total Patents
#1 Schupner Willard J 5
#2 Gryglas Bogdan 4
#3 Gryglas Bogdan R 3
#4 Domek John A 2
#5 Gryglas B 1
#6 Uiraado Jiensen Shiyubunaa 1
#7 Bogdan Gryglas 1
#8 Karbowniczek Stanley 1
#9 Gryglas Bogdan Roman 1
#10 Schupner Willard Jensen 1

Latest patents

Publication Filing date Title
US4284177A Self-adjusting shock absorber having staged metering
US4164274A Adjustable shock absorber
US4071122A Adjustable shock absorber
US3990548A Adjustable hydraulic dashpot
US3998302A Adjustable shock absorber unit
US3997037A Adjustable shock absorber
US3874408A Control valve
US3865216A Continuous rotary damper
US3645365A Adjustable shock absorber
US3446317A Adjustable shock absorber
US3425522A Adjustable hydraulic dashpot
CA877822A Adjustable shock absorber
CA842077A Shock absorber