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GREENVILLE STEEL CAR

Overview
  • Total Patents
    20
About

GREENVILLE STEEL CAR has a total of 20 patent applications. Its first patent ever was published in 1926. It filed its patents most often in United States and Canada. Its main competitors in its focus markets transport, machines and machine tools are DESPATCH SHOPS INC, MAGOR CAR CORP and UNITCAST CORP.

Patent filings in countries

World map showing GREENVILLE STEEL CARs patent filings in countries
# Country Total Patents
#1 United States 13
#2 Canada 7

Patent filings per year

Chart showing GREENVILLE STEEL CARs patent filings per year from 1900 to 2020

Top inventors

# Name Total Patents
#1 Burleson Robert M 8
#2 Gardner Kenneth C 6
#3 Dietrich William S 4
#4 Lightner Joseph C 1
#5 Minshull Thomas R 1
#6 Hart James D 1

Latest patents

Publication Filing date Title
US4646652A Railroad car door bottom guide system
US4688490A Rail car door bottom guide rail having tire-actuated, depressible sections
US4649831A Rail car with space allowing for opening of end enclosure
US4686909A Rail car bridge plate securement assembly with rotating leaf
US4329927A Railway car roping staple
US4212252A Gondola-type railway car
US1710501A Welded cross brace
US1641885A Cross brace
US1632181A Crosstie for railway cars
US1630001A Car construction
US1648938A Method and apparatus for cooling friction saws
US1631927A Sawing apparatus and method
US1605816A Sawing method
CA273862A Car construction
CA273861A Cross tie for railway cars
CA283760A Sawing apparatus