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LEDUC GERARD

Overview
  • Total Patents
    24
About

LEDUC GERARD has a total of 24 patent applications. Its first patent ever was published in 1969. It filed its patents most often in France, Germany and United States. Its main competitors in its focus markets engines, pumps and turbines, mechanical elements and control are JIANGXI ZISHENG TECH CO LTD, WEIR MINERALS NETHERLANDS BV and NVB INTERNAT LTD.

Patent filings in countries

World map showing LEDUC GERARDs patent filings in countries
# Country Total Patents
#1 France 11
#2 Germany 7
#3 United States 3
#4 Canada 1
#5 United Kingdom 1
#6 Japan 1

Patent filings per year

Chart showing LEDUC GERARDs patent filings per year from 1900 to 2020

Top inventors

# Name Total Patents
#1 Leduc Gerard 12
#2 Leduc Michel 2
#3 Jierarudo Rudatsuku 1
#4 Mishieeru Rudatsuku 1
#5 Leduc Michell 1

Latest patents

Publication Filing date Title
FR2436435A2 Pressure and safety regulator for hydraulic accumulator - comprises hollow sliding sleeve valve which regulates pressure in accumulator
FR2413706A2 Hydraulic pressure regulator with overpressure attenuator - has spring loaded ball bearing type anti-return valve held at one end of hollow slide
DE2616192A1 ECCENTRIC HYDRAULIC PUMP
FR2341891A1 Filling and safety valve for hydraulic vessel - has sliding sleeve and pressure relief end cap held by single spring
US3981630A Hydraulic swash plate pumps
CA1018003A Hydraulic swash plate pump
US3873240A Hydraulic swash plate pump
US3575534A Constant torque hydraulic pump