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CHICAGO DEV CO

Overview
  • Total Patents
    62
About

CHICAGO DEV CO has a total of 62 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 materials and metallurgy, surface technology and coating and electrical machinery and energy are KB ALLOYS INC, CHENGDE TIANDA VANADIUM IND CO LTD and GEORG VON GIESCHES ERBEN.

Patent filings in countries

World map showing CHICAGO DEV COs patent filings in countries
# Country Total Patents
#1 United States 57
#2 Canada 4
#3 United Kingdom 1

Patent filings per year

Chart showing CHICAGO DEV COs patent filings per year from 1900 to 2020

Top inventors

# Name Total Patents
#1 Dean Reginald S 38
#2 Anderson Clarence T 14
#3 Travis Anderson Clarence 6
#4 Long James R 3
#5 Davis Charles W 3
#6 Moss Cresap M 3
#7 Hood Donald R 2
#8 Hood Stanley R 2
#9 Ambrose Paul M 2
#10 Coleman Clyde 1

Latest patents

Publication Filing date Title
GB658264A Hardened non-ferrous alloy
US2495063A Heat-treatment of copper-nickel-manganese alloys
US2376869A Alloys
US2453896A Treatment of titanium
US2370320A Magnesium base alloy
US2376868A Magnesium alloy
US2349577A Control member
US2348207A Alloys
US2329186A Alloys
US2315507A Copper-base alloy
US2324528A Copper-aluminum-manganese alloy
US2347706A Copper-zinc-manganese alloy
US2378916A Manganese alloys
US2376867A Manganese alloys
US2325044A Manganese alloys
US2317979A Manganese-base alloy
US2267301A Alloy
US2267300A Alloy
US2270868A Hardened nonferrous alloys
US2250470A Manganese alloy