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UNION DRAFT GEAR COMPANY

Overview
  • Total Patents
    38
About

UNION DRAFT GEAR COMPANY has a total of 38 patent applications. Its first patent ever was published in 1908. It filed its patents most often in United States. Its main competitors in its focus markets transport are JONES WILLIAM RICHARD SUMPTION, WILLISON JOHN and BELFIELD REGINALD.

Patent filings in countries

World map showing UNION DRAFT GEAR COMPANYs patent filings in countries
# Country Total Patents
#1 United States 38

Patent filings per year

Chart showing UNION DRAFT GEAR COMPANYs patent filings per year from 1900 to 2020

Focus industries

# Industry
#1 Transport

Focus technologies

# Technology
#1 Couplings

Top inventors

# Name Total Patents
#1 Cotton Walter H 22
#2 Cardwell James R 12
#3 Jones Joshua J 2
#4 Canfield Lewis T 2
#5 Harry Barnard 2
#6 Sproul Donald F 1

Latest patents

Publication Filing date Title
US1644172A Friction draft gear
US1709895A Draft gear
US1835282A Draft gear
US1643834A Railway car
US1648296A Draft gear
US1720927A Draft gear
US1674639A Draft gear
US1684388A Draft gear
US1774085A Draft gear
US1865838A Draft gear
US1702932A Draft gear
US1689549A Draft gear
US1733527A Draft gear
US1702040A Draft gear
US1624929A Draft gear
US1666888A Draft gear
US1705635A Draft gear
US1702032A Draft gear
US1855514A Draft gear
US1755429A Draft gear