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GROFF JOSEPH C

Overview
  • Total Patents
    15
About

GROFF JOSEPH C has a total of 15 patent applications. Its first patent ever was published in 1924. It filed its patents most often in United States and Canada. Its main competitors in its focus markets engines, pumps and turbines, mechanical elements and machines are GEORGE AMERY, ELASIS SISTEMA RICERCA FIAT and ORANGE GMBH.

Patent filings in countries

World map showing GROFF JOSEPH Cs patent filings in countries
# Country Total Patents
#1 United States 13
#2 Canada 2

Patent filings per year

Chart showing GROFF JOSEPH Cs patent filings per year from 1900 to 2020

Top inventors

# Name Total Patents
#1 Groff Joseph C 15

Latest patents

Publication Filing date Title
US2325672A Reciprocating plunger pump
US1970960A Mechanical power transmitting device
US1982659A Performance gauging means for prime movers
US1922539A Fuel supplying pump for internal combustion engines of the airless fuel injection type
US1771038A Fuel supplying and injecting pump for internal-combustion engines of the fuel-injection type
US1761122A Valve-lift-control device for fuel-injecting valves
US1771037A Control device for the fuel-supply pumps of injection-type internalcombustion engines
US1837813A Fuel supplying and injecting pump for internal combustion engines of the self ignition type
US1922538A Fuel injecting pump for diesel and other like forms of self-ignition engines employing airless- or "solid"-injection of liquid fuel substances
US1804413A Method for converting the heat energy of fuel into useful working energy
US1865099A Airless fuel supplying and injecting system for diesel and other like forms of compression ignition internal combustion engines
US1657120A Valve gear for internal-combustion engines of the compression ignition type
US1749975A Fuel-supplying device
CA289746A Heat conversion
CA361055A Motor performance gauge