Learn more

HYDRAULIC PRESS MFG CO

Overview
  • Total Patents
    80
About

HYDRAULIC PRESS MFG CO has a total of 80 patent applications. Its first patent ever was published in 1910. It filed its patents most often in United States, Canada and France. Its main competitors in its focus markets machine tools, engines, pumps and turbines and machines are MARMONIER FILS ETS, PRESSOIRS MABILLE and AIDA IRON WORKS & CO LTD.

Patent filings in countries

World map showing HYDRAULIC PRESS MFG COs patent filings in countries
# Country Total Patents
#1 United States 72
#2 Canada 6
#3 France 2

Patent filings per year

Chart showing HYDRAULIC PRESS MFG COs patent filings per year from 1900 to 2020

Top inventors

# Name Total Patents
#1 Walter Ernst 32
#2 Stevenson Francis E 15
#3 Macmillin Howard F 9
#4 Benedek Elek K 7
#5 Elek Benedek 5
#6 Ernst Walter 5
#7 Hubbert Leslie S 3
#8 Reider Thoreson 3
#9 Little Harry C 3
#10 Darling Elton R 2

Latest patents

Publication Filing date Title
US2021354A External adjustment for hydraulic pump bearings
US2021353A Hydraulic pump or motor
US2032079A Pump or motor
US2024420A Pump
US1990263A Pump
US2000271A Variable delivery pump or motor
US1978016A Control apparatus for pumps
US1953211A Flexible elastic coupling
US2023216A Variable delivery pump or motor
US1971850A Press
US1952663A Control mechanism for pumps and associated press circuits
US1895710A Hydraulic press
US1891121A Drawing press or the like
US1956758A Hydraulic press operating circuits
US2006880A High pressure radial piston hydraulic pump or motor
US1964244A Variable delivery radial pump
US1964245A Constant delivery radial piston pump
US2014162A Hydraulic press
US1945391A Pump
US1870501A Plural pressure pump control for hydraulic presses