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COWING JOHN PHILO

Overview
  • Total Patents
    11
About

COWING JOHN PHILO has a total of 11 patent applications. Its first patent ever was published in 1899. It filed its patents most often in United States, Canada and United Kingdom. Its main competitors in its focus markets civil engineering, mechanical elements and transport are SHAN GUOZHU, VLCEK PETR ING and KAWAGUCHI METAL IND CO LTD.

Patent filings in countries

World map showing COWING JOHN PHILOs patent filings in countries
# Country Total Patents
#1 United States 7
#2 Canada 2
#3 United Kingdom 2

Patent filings per year

Chart showing COWING JOHN PHILOs patent filings per year from 1900 to 2020

Top inventors

# Name Total Patents
#1 Cowing John Philo 11

Latest patents

Publication Filing date Title
US754751A Conical roller-bearing.
US738297A Automatic derailer for drawbridges.
US672848A Revolving lift-bridge.
CA70265A Bascule lift bridge
US665405A Bascule-bridge.
GB190004537A Improvements in Bascule Bridges.
US653729A Gate for drawbridges.
GB189923211A Improvements in Bascule Lift Bridges.
CA65772A Bascule bridge
US644405A Bascule lift-bridge.
US633811A Bascule lift-bridge.