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HAMILTON JOHN HENRY

Overview
  • Total Patents
    28
About

HAMILTON JOHN HENRY has a total of 28 patent applications. Its first patent ever was published in 1893. It filed its patents most often in United Kingdom and Canada. Its main competitors in its focus markets engines, pumps and turbines and control are OMVL S P A, WILTSE APPLIANCE COMPANY and ANHUI HONGHUI FILTER CO LTD.

Patent filings in countries

World map showing HAMILTON JOHN HENRYs patent filings in countries
# Country Total Patents
#1 United Kingdom 27
#2 Canada 1

Patent filings per year

Chart showing HAMILTON JOHN HENRYs patent filings per year from 1900 to 2020

Focus industries

# Industry
#1 Engines, pumps and turbines
#2 Control

Top inventors

# Name Total Patents
#1 Hamilton John Henry 28
#2 Rollason Arthur 1

Latest patents

Publication Filing date Title
GB191420231A Improvements in Engine Governors.
GB191216912A Improvements in Internal Combustion Engines.
GB190914775A Improvements in Internal Combustion Engines.
GB190908642A Improvements in Engines having Triangular Connecting Rods.
GB190908126A Improvements in Internal Combustion Engines.
CA123974A Gas motor engine
GB190625539A Improvements in Gas Motor Engines.
GB190616464A Improvements in the Valve Gear of Gas Motor Engines.
GB190512889A Improvements in Stuffing Boxes for Internal Combustion Engines.
GB190407767A Improvements in Gas Producers.
GB190401635A Improvements in Pistons.
GB190326838A Improvements in Internal Combustion Engines.
GB190325405A Improvements in Gas Driven Blowing Engines.
GB190309266A Operating the Valves of Internal Combustion Engines.
GB190208029A Improvements in Blowing Engines
GB190023275A Improvements in Internal Combustion Engines
GB190014380A Improvements in Blowing Engines
GB190014379A Improvements in Blowing Engines.
GB190011545A Improvements in Internal Combustion Engines
GB190010766A Improvements in Gas Motor Engines