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.
# | Country | Total Patents | |
---|---|---|---|
#1 | France | 11 | |
#2 | Germany | 7 | |
#3 | United States | 3 | |
#4 | Canada | 1 | |
#5 | United Kingdom | 1 | |
#6 | Japan | 1 |
# | Industry | |
---|---|---|
#1 | Engines, pumps and turbines | |
#2 | Mechanical elements | |
#3 | Control |
# | Technology | |
---|---|---|
#1 | Pumps | |
#2 | Systems controlling non-electric variables | |
#3 | Servomotors | |
#4 | Gearing |
# | Name | Total Patents |
---|---|---|
#1 | Leduc Gerard | 12 |
#2 | Leduc Michel | 2 |
#3 | Jierarudo Rudatsuku | 1 |
#4 | Mishieeru Rudatsuku | 1 |
#5 | Leduc Michell | 1 |
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 |