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THEW SHOVEL CO

Overview
  • Total Patents
    149
About

THEW SHOVEL CO has a total of 149 patent applications. Its first patent ever was published in 1919. It filed its patents most often in United States, Canada and France. Its main competitors in its focus markets civil engineering, packaging and shipping and mechanical elements are IHI CONSTRUCTION MACHINERY LTD, INDEXATOR ROTATOR SYS AB and THEW AUTOMATIC SHOVEL COMPANY.

Patent filings in countries

World map showing THEW SHOVEL COs patent filings in countries
# Country Total Patents
#1 United States 85
#2 Canada 26
#3 France 12
#4 United Kingdom 12
#5 Belgium 10
#6 Germany 4

Patent filings per year

Chart showing THEW SHOVEL COs patent filings per year from 1900 to 2020

Top inventors

# Name Total Patents
#1 Zeilman Roy H 38
#2 Wilson Emery J 19
#3 Noll George C 16
#4 Brekelbaum Erwin C 7
#5 Klos George B 7
#6 Weber Charles A 6
#7 Bowman Spencer 6
#8 Nielsen John D 5
#9 Spencer Bowman 5
#10 Scott Harry E 5

Latest patents

Publication Filing date Title
DE1215325B Rotatable, foldable crane mounted on a carrier vehicle
US3139988A Indicator for cranes and the like
US3134488A Crane
DE1187076B Simply cranked tab as a connecting link for block or bush chains
US3109542A Stabilizers for cranes and the like
US3109248A Bucket grader attachment
GB947669A Sprocket chain
GB946162A Permanent magnet lifting device
GB924077A Crawler tractor with demountable side frames
GB967277A Outriggers for crawler cranes,shovels,hoes and the like
GB963023A Turntable ball bearing for power cranes, shovels, hoes and the like
US3076560A Retractible mast and boom stop
GB928772A Boom and scoop assembly for attachment to a tractor or the like
DE1183437B Shovel loading machine
US3054300A Sprocket chain
US3092260A Back-hitch gaintry
US3083837A Crane
US3019913A Outriggers for power shovels, cranes or the like
US3021016A Outriggers for crawler cranes, shovels, hoes and the like
US3036650A Carrier with demountable side frames