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KERSHAW MFG COMPANY INC

Overview
  • Total Patents
    20
About

KERSHAW MFG COMPANY INC has a total of 20 patent applications. Its first patent ever was published in 1954. It filed its patents most often in United States, Germany and France. Its main competitors in its focus markets civil engineering, machines and transport are LOCKSPIKE LTD, KERSHAW MFG and COUGHLIN WILLIAM G.

Patent filings in countries

World map showing KERSHAW MFG COMPANY INCs patent filings in countries
# Country Total Patents
#1 United States 17
#2 Germany 1
#3 France 1
#4 United Kingdom 1

Patent filings per year

Chart showing KERSHAW MFG COMPANY INCs patent filings per year from 1900 to 2020

Top inventors

# Name Total Patents
#1 Holley John D 5
#2 Royce Kershaw 4
#3 Kershaw Royce G 3
#4 Knox Kershaw John 2
#5 Gideon Kershaw Royce 2
#6 Bryan Jr John F 2
#7 Franklin Richard E 1
#8 Fox Herbert C 1
#9 Jun John F Bryan 1
#10 Bode Ernest E 1

Latest patents

Publication Filing date Title
US3237232A Apparatus for restraining critical bending of a resilient sweeper element
US3305949A Snow removal apparatus
US3222803A Ballast removing apparatus
FR1328283A Method and device for the lateral displacement of railway tracks
DE1204248B Machine that can be moved on a track to move the track on the side
US3161213A Vertically-reciprocating saw apparatus for cutting crossties
US3137244A Apparatus for lining a railroad track
US3005274A Apparatus for removing ballast from between crossties
US2887135A Adzing apparatus for railroad crossties
US2986100A Railoway crosstie detector
US2929084A Deflector assembly for railroad track sweepers
US3019536A Railway ballast equipment
US3019742A Road and rail vehicle
US2886904A Apparatus for removing ballast from beneath railroad tracks
US2846206A Railway roadbed scarifying apparatus
US2926617A Ballast tamping apparatus
US2908228A Apparatus for removing and replacing cross ties in a railway track
US2869476A Railroad track raising and ballast tamping apparatus
US2760440A Apparatus for raising railroad tracks