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PREC DEVELOPMENTS CO LTD

Overview
  • Total Patents
    89
About

PREC DEVELOPMENTS CO LTD has a total of 89 patent applications. Its first patent ever was published in 1942. It filed its patents most often in United Kingdom, France and United States. Its main competitors in its focus markets engines, pumps and turbines, control and mechanical elements are DANFOSS POWER SOLUTIONS GMBH & CO OHG, ALFA LAVAL FLOW GMBH and TURNER MFG COMPANY LTD.

Patent filings in countries

World map showing PREC DEVELOPMENTS CO LTDs patent filings in countries
# Country Total Patents
#1 United Kingdom 51
#2 France 23
#3 United States 8
#4 Canada 6
#5 Germany 1

Patent filings per year

Chart showing PREC DEVELOPMENTS CO LTDs patent filings per year from 1900 to 2020

Top inventors

# Name Total Patents
#1 Olah George 29
#2 George Olah 8
#3 Olah Georges 2
#4 Hadekel Ruben 1
#5 Rossz Laszlo 1

Latest patents

Publication Filing date Title
US2594796A Variable resistance
DE843915C Pressure medium operated control or regulating device
US2737964A Pneumatic control apparatus
US2669247A Fluid-pressure operated device
GB730082A Improvements in pneumatic control apparatus
GB730081A Improvements in or relating to fluid-pressure operated devices
US2571377A Rotary displacement pump
GB645500A Improvement in gear pumps
GB623802A Improvements relating to rotary displacement pumps
GB629328A Improvements in or relating to differential electric contact devices
GB613074A Improvements relating to actuating devices for loaded elements
GB652362A Improvements relating to hydraulic power transmission apparatus
GB640983A Improvements relating to variable-delivery hydraulic pumps
GB618899A Improvements relating to electric contact devices applicable to electric follow-up switches
GB640091A Improvements relating to slide-valve devices
US2511479A Cooling means for reduction gearing
FR924602A Multi-cylindrical pump
GB611632A Improvements relating to hydraulic press plant
GB617425A Improvements relating to electric follow-up control mechanism
GB609427A Improvements relating to electric automatic control apparatus, more particularly for machine-tool and similar drives