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RAILWAY ENG ASS

Overview
  • Total Patents
    20
About

RAILWAY ENG ASS has a total of 20 patent applications. Its first patent ever was published in 1972. It filed its patents most often in United States, Canada and Australia. Its main competitors in its focus markets transport and machines are RAILROAD DYNAMICS INC, MILLER LUBRICATOR COMPANY and LORD HAROLD EDWARD.

Patent filings per year

Chart showing RAILWAY ENG ASSs patent filings per year from 1900 to 2020

Focus industries

# Industry
#1 Transport
#2 Machines

Top inventors

# Name Total Patents
#1 List Harold A 17
#2 Harold A List 1
#3 Lindrooth Charles H 1
#4 List Executrix By Marie F 1

Latest patents

Publication Filing date Title
US5315934A Constant contact side bearings with spring biased sliding wedges
US5174218A Self-steering trucks with side bearings supporting the entire weight of the vehicle
US5000097A Self-steering railway truck
US4938152A Flexible railway car truck
US4889054A Steering arms for self-steering trucks and truck retrofitting method
US4781124A Articulated trucks
US4706571A Self-steering trucks
US4655143A Articulated trucks
US4455946A Articulated trucks
CA1065190A Articulated trucks
US4131069A Articulated railway car trucks
CA1004543A Vehicle running-gear, especially useful in railway trucks