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KEYSTONE FURNACE CONSTRUCTION COMPANY

Overview
  • Total Patents
    23
About

KEYSTONE FURNACE CONSTRUCTION COMPANY has a total of 23 patent applications. Its first patent ever was published in 1908. It filed its patents most often in United States and Canada. Its main competitors in its focus markets thermal processes and machines are ANDERSON THERMAL SOLUTION SUZHOU CO LTD, COMBUSTECH LTD and DENVER FIRE CLAY COMPANY.

Patent filings in countries

World map showing KEYSTONE FURNACE CONSTRUCTION COMPANYs patent filings in countries
# Country Total Patents
#1 United States 19
#2 Canada 4

Patent filings per year

Chart showing KEYSTONE FURNACE CONSTRUCTION COMPANYs patent filings per year from 1900 to 2020

Focus industries

# Industry
#1 Thermal processes
#2 Machines

Top inventors

# Name Total Patents
#1 Knox Luther L 17
#2 Murray Montgomery 3
#3 Knox Luther Loucine 2
#4 Knox Luther Louckne 1
#5 Mcentee Thomas T 1
#6 Carney Frank Delbert 1
#7 Carney Frank D 1
#8 Mcentee Thomas Theodore 1

Latest patents

Publication Filing date Title
US1085138A Reversing regenerative furnace.
US1041814A Regenerative reversing-furnace.
US1038154A Regenerative reversing furnace.
US978822A Regenerative reversing-furnace.
US973943A Furnace.
US956367A Regenerative reversing-furnace.
CA125070A Furnace
CA125071A Furnace
CA125068A Furnace mechanism
CA125067A Furnace
US951644A Regenerative reversing-furnace.
US938426A Regenerative reversing-furnace.
US938246A Regenerative reversing-furnace.
US919190A Means for cooling furnace-walls.
US919189A Furnace.
US919188A Furnace.
US919187A Furnace.
US919186A Furnace.
US919027A Furnace.
US919185A Regenerative reversing furnace.