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CF & I STEEL LP

Overview
  • Total Patents
    14
About

CF & I STEEL LP has a total of 14 patent applications. Its first patent ever was published in 1990. It filed its patents most often in United States, EPO (European Patent Office) and Canada. Its main competitors in its focus markets materials and metallurgy, machine tools and machines are J & L SPECIALTY STEEL INC, CF & I STEEL CORP and EDWARD A LANGENBACH.

Patent filings per year

Chart showing CF & I STEEL LPs patent filings per year from 1900 to 2020

Top inventors

# Name Total Patents
#1 Winkley John C 10
#2 Cryderman Robert L 10
#3 Cryderman Robert Leonard 1
#4 Reid Kenneth H 1
#5 Cordova J Vincent 1
#6 Kristan Joseph V 1
#7 Mcwhorter Paul H 1

Latest patents

Publication Filing date Title
EP2785917A1 Method and apparatus for treatment of a rail weld
US7288159B2 High impact and wear resistant steel
US6571636B1 Wheel-type transmit/receive ultrasonic inspection device with constant length internal liquid soundpath
US5472041A Railroad rail and method and system of rolling the same by conventional or continuous rolling process