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ENGINS PISTONS LIBRES EPL

Overview
  • Total Patents
    22
About

ENGINS PISTONS LIBRES EPL has a total of 22 patent applications. Its first patent ever was published in 1960. It filed its patents most often in France, United Kingdom and Canada. Its main competitors in its focus markets engines, pumps and turbines are AMERICAN GAS TURBINE CORP, CENTRA HANDELS & IND A G and OCHIAI HAMONO KOGYO KK.

Patent filings in countries

World map showing ENGINS PISTONS LIBRES EPLs patent filings in countries

Patent filings per year

Chart showing ENGINS PISTONS LIBRES EPLs patent filings per year from 1900 to 2020

Focus industries

Focus technologies

Top inventors

# Name Total Patents
#1 Hellweg Kurt 12
#2 Cariou Guillaume 2
#3 Hellweg Kurt Antony 1
#4 Hellweg M 1
#5 Wilhelm Hellweg Kurt Hermann 1
#6 Kurt Hellweg 1

Latest patents

Publication Filing date Title
OA00042A Improvement in machines with opposed free pistons.
DE1451653A1 Machine with free-flying opposed piston
US3183900A Floating-piston internal-combustion machine
GB944312A Improvements in a starting system for free-piston internal combustion engines
GB969234A Improvements in or relating to devices for the compressed-air starting of internal combustion engines with free opposed pistons
ES268060A1 Improvements relating to internal-combustion operated free-piston gas generators
US3106913A Combustion gas generator of the free-floating piston type
CA709723A Motor-compressor system
CA645127A Combustion gas generator of the free-floating piston type
CA672362A Floating-piston, internal-combustion machine