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KERSHAW MFG

Overview
  • Total Patents
    52
About

KERSHAW MFG has a total of 52 patent applications. Its first patent ever was published in 1964. It filed its patents most often in United States, Canada and Switzerland. Its main competitors in its focus markets civil engineering, transport and consumer goods are AUGUSTE SCHEUCHZER, E H OTTO KAMMERER DR ING and UNBEHAUN OLAF.

Patent filings per year

Chart showing KERSHAW MFGs patent filings per year from 1900 to 2020

Top inventors

# Name Total Patents
#1 Whitaker Jr John B 11
#2 Holley John D 9
#3 Whitaker John B 6
#4 Pasquini Sandro 6
#5 John D Holley 3
#6 Kershaw Royce G 3
#7 John Dowling Holley 3
#8 Bryan John F Jr 2
#9 Martinez Antonio H 2
#10 Ernest E Bode 1

Latest patents

Publication Filing date Title
US5655455A Tie plate placer
WO9203617A1 Rotary ballast wagon
AU8621291A Rotary ballast wagon
US5099766A Ballast wagon for reviewing railway ballast with rotary storage drums
US5127335A Points and crossing changer
US4967847A Method and apparatus for cleaning ballast
US4848426A Adzer cribber
US4890557A Interstitial ballast vibrator
US4843967A Compaction tamper
US4882860A Apparatus for removing ballast from beneath railroad tracks
US4850123A Ballast removal apparatus
US4809615A Method and apparatus for re-railing working platforms
US4705115A Method and apparatus for reconditioning ballast along a railroad track
US4674208A Ballast removing apparatus
CH658689A5 Railway conveyor.
CH658482A5 Railway conveyor.
US4563826A Apparatus for removing ballast from beneath a railroad track
US4222418A Apparatus for mounting flail members on a rotatable drum
FR1523871A Railway track cleaning equipment
FR1476061A Ballast cleaner