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CHAPARRAL STEEL CO

Overview
  • Total Patents
    32
About

CHAPARRAL STEEL CO has a total of 32 patent applications. Its first patent ever was published in 1986. It filed its patents most often in United States, Canada and EPO (European Patent Office). Its main competitors in its focus markets materials and metallurgy, machines and thermal processes are UNITED AMERICAN METALS CORP, FLOCON ITALIANA and GARRETT CROMWELL ENGINEERING COMPANY.

Patent filings per year

Chart showing CHAPARRAL STEEL COs patent filings per year from 1900 to 2020

Top inventors

# Name Total Patents
#1 Rostik Libor F 14
#2 Forward Gordon E 11
#3 Schmelzle Lloyd M 11
#4 Hartman Richard J 7
#5 Jaffre Richard T 5
#6 Hunt Harry D 5
#7 Simcoe Robert J 2
#8 Libor F Rostik 2
#9 Lloyd M Schmelzle 2
#10 Wright Peter 1

Latest patents

Publication Filing date Title
US7018140B1 Z-shaped sheet piling
US5685524A Direct ironmaking or steelmaking apparatus using self-reducing iron oxide pellets
RU2060098C1 Continuous-cast beam billet and process of manufacture of beam profile
EP0355940A1 Continuous casting mold with removable insert
US4824492A Method for producing a precipitation hardenable martensitic low alloy steel forging
US4744406A Horizontal continuous casting apparatus with break ring formed integral with mold