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JOHN S BARNES CORP

Overview
  • Total Patents
    19
About

JOHN S BARNES CORP has a total of 19 patent applications. Its first patent ever was published in 1930. It filed its patents most often in Germany, United Kingdom and France. Its main competitors in its focus markets machine tools, engines, pumps and turbines and machines are YANG MING-LU, CHANGSHU MIAOQUAN COMPRESSOR ACCESSORIES CO LTD and BECHLER ANDRE.

Patent filings in countries

World map showing JOHN S BARNES CORPs patent filings in countries
# Country Total Patents
#1 Germany 6
#2 United Kingdom 6
#3 France 5
#4 United States 2

Patent filings per year

Chart showing JOHN S BARNES CORPs patent filings per year from 1900 to 2020

Top inventors

# Name Total Patents
#1 Svenson Ernest J 2

Latest patents

Publication Filing date Title
US2174850A Hydraulic control and actuator mechanism
US2266829A Metalworking apparatus
GB388418A Improvements in or relating to hydraulic actuator systems
FR716143A Mechanism for pump group
DE628294C Device for regulating the delivery rate in piston pumps with radially movable piston
DE629571C Gear pump
DE639979C Liquid pump
GB369256A Improvements in or relating to hydraulic actuator systems for propelling machine parts
GB366928A Improvements in or relating to lathes or similar machines
GB369220A Improvements in or relating to lathes or similar machines
GB368392A Improvements in or relating to lathes or similar machines
GB368792A Improvements in or relating to hydraulic actuator systems for controlling the movements of machine parts
DE677114C Hydraulic fluid drive, in particular for machine tools, preferably for turning benches
DE673728C Slide arrangement for machine tools