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JOSEPH COBLENTZ GROFF

Overview
  • Total Patents
    13
About

JOSEPH COBLENTZ GROFF has a total of 13 patent applications. Its first patent ever was published in 1925. It filed its patents most often in United Kingdom and Germany. Its main competitors in its focus markets engines, pumps and turbines and measurement are SPICA SPA, DELPHI TECHNOLOGIES HOLDING and SIEMENS AUTOMOTIVE HYDRAULICS.

Patent filings in countries

World map showing JOSEPH COBLENTZ GROFFs patent filings in countries
# Country Total Patents
#1 United Kingdom 8
#2 Germany 5

Patent filings per year

Chart showing JOSEPH COBLENTZ GROFFs patent filings per year from 1900 to 2020

Focus industries

Latest patents

Publication Filing date Title
GB562820A Improvements in or relating to plunger pumps
GB430782A Means for gauging performance of prime movers
GB441497A Improvements in or relating to mechanical power transmitting devices for use with pumps
GB368715A Improvements in or relating to fuel supplying pumps for internal combustion engines of the airless fuel injection type
GB292975A Improvements in or relating to fuel injecting pumps for airless injection internal combustion engines
GB289413A Improvements relating to fuel injection devices for internal combustion engines
GB250919A Improvements in or relating to valve gear for internal combustion engines of the compression ignition type
GB238204A Improvements in fuel injecting and supplying devices for internal combustion engines of the diesel type