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HENNESSEY JOHN J

Overview
  • Total Patents
    37
About

HENNESSEY JOHN J has a total of 37 patent applications. Its first patent ever was published in 1899. It filed its patents most often in United States and Canada. Its main competitors in its focus markets transport, civil engineering and machines are SYMINGTON THOMAS H, THOMSON GLASCODINE RICHARD and SYMINGTON CO.

Patent filings in countries

World map showing HENNESSEY JOHN Js patent filings in countries
# Country Total Patents
#1 United States 25
#2 Canada 12

Patent filings per year

Chart showing HENNESSEY JOHN Js patent filings per year from 1900 to 2020

Focus industries

Top inventors

# Name Total Patents
#1 Hennessey John J 37
#2 Moore Peter N 1

Latest patents

Publication Filing date Title
CA182997A Side bearing for railway cars
US1209838A Adjustable rocker side bearing.
US1222951A Adjustable side bearing.
US1171433A Side bearing for railway-cars.
US1169820A Side bearing for railway-cars.
CA147334A Center bearing for cars
US1009306A Center-bearing for cars.
US876644A Car-frame construction.
US793721A Railway-car frame and bolster.
US778364A Railway-car frame and bolster.
US793930A Grain-car.
CA82910A Friction draft rigging for railway cars
CA80554A Railway car draft gear
CA80558A Railway car draft mechanism
CA80557A Railway car draft gear
CA80555A Railway car draft mechanism
CA80556A Railway car draft gear
CA80551A Railway draft gear
CA80552A Railway car bearing
CA80550A Draft gear