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HOWE WINTHROP KEITH

Overview
  • Total Patents
    15
About

HOWE WINTHROP KEITH has a total of 15 patent applications. Its first patent ever was published in 1914. It filed its patents most often in Canada and United Kingdom. Its main competitors in its focus markets transport are TIANJIN OPTICAL ELECTRICAL GAOSI COMM ENGINEERING TECHNOLOGY CO LTD, THOMPSON HENRY ARTHUR and COUSIN ET CIE SOC.

Patent filings in countries

World map showing HOWE WINTHROP KEITHs patent filings in countries
# Country Total Patents
#1 Canada 14
#2 United Kingdom 1

Patent filings per year

Chart showing HOWE WINTHROP KEITHs patent filings per year from 1900 to 2020

Focus industries

# Industry
#1 Transport

Focus technologies

# Technology
#1 Guiding railway traffic

Top inventors

# Name Total Patents
#1 Howe Winthrop Keith 15

Latest patents

Publication Filing date Title
CA184752A Train control system
CA179361A Foot for cotact shoes
CA195321A Train control system
CA195320A Train control system
CA185149A Railway traffic governing system
CA185150A Train control system
CA185146A Train control system
CA195318A Train control system
CA173535A Railway traffic control system
CA179478A Train control
CA179264A Speed control for vehicles
CA170662A Train control system
CA179263A Train controlling system
CA179262A Train control system
GB191411802A Improved Automatic Speed Control Apparatus for Railway Trains.