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EVANS PROD CO

Overview
  • Total Patents
    546
About

EVANS PROD CO has a total of 546 patent applications. Its first patent ever was published in 1927. It filed its patents most often in United States, Canada and France. Its main competitors in its focus markets transport, machines and civil engineering are UNITCAST CORP, GEN AMERICAN TANK CAR CORP and YOUNGSTOWN STEEL DOOR CO.

Patent filings per year

Chart showing EVANS PROD COs patent filings per year from 1900 to 2020

Top inventors

# Name Total Patents
#1 Dunlap Henry L 55
#2 Chapman Harvey W 39
#3 Tobin Kenneth J 25
#4 Moorhead John P 21
#5 Shook Jackson A 19
#6 Krokos Raymond M 16
#7 Michael Nampa Sulo 15
#8 Rolfe Jr Herbert E 11
#9 Lintern Alfred R 11
#10 Maccurdy William K 10

Latest patents

Publication Filing date Title
CA1268750A Cone discharge for diaphragm discharge rotary grinding mill
AU5358386A Shell liner assembly
US4646980A Cone discharge for diaphragm discharge rotary grinding mill
US4558826A Hammer for automobile shredding mills
US4549504A Electronic controller for regulating temperature within an internal combustion engine system
US4454984A Auxiliary circulation system for vehicle heaters
US4455807A Splice rail assembly
CA1167702A Freight car door locking mechanism
US4372716A Freight bracing bulkhead trolley and latching system
US4345862A Modular freight bracing bulkhead assembly
JPS5749629A Manufacture of microporous sheet matter
US4342267A Hopper discharge unit with sliding gate
US4290232A Freight car door locking mechanism
CA1107145A Pneumatic hopper gate
US4281870A Vehicle convertible double deck system
US4237083A Process of manufacturing a microporous sheet material
CA1164274A Movable stanchions for freight cars
CA1059071A End of car cushioning unit
CA1065802A End of car cushioning unit
DE2815474A1 Fluid actuatable fan clutch - has internal caliper action and removable fan hub cap giving air seal access