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PORTHAM ROLAND SYDNEY

Overview
  • Total Patents
    11
About

PORTHAM ROLAND SYDNEY has a total of 11 patent applications. Its first patent ever was published in 1916. It filed its patents most often in United Kingdom and Canada. Its main competitors in its focus markets thermal processes, engines, pumps and turbines and transport are VULCAN WERKE HAMBURG & STETTIN, WARD CHARLES E and YARROW ALFRED FERNANDEZ.

Patent filings in countries

World map showing PORTHAM ROLAND SYDNEYs patent filings in countries
# Country Total Patents
#1 United Kingdom 9
#2 Canada 2

Patent filings per year

Chart showing PORTHAM ROLAND SYDNEYs patent filings per year from 1900 to 2020

Top inventors

# Name Total Patents
#1 Portham Roland Sydney 11
#2 Dornan James 2
#3 Whittle Reginald Wood 1
#4 Dryburgh Alexander Philip 1

Latest patents

Publication Filing date Title
GB124101A Improvements in and relating to Steam Turbine Installations.
GB119770A Improvements in and relating to Water Tube Boilers and Superheaters therefor.
GB121313A Improvements in and relating to Condensers and Coolers.
GB119075A Improvements in and relating to Locomotives.
GB114508A Improvements in and relating to Superheaters for Boilers of the Water Tube Type.
GB110863A Improvements in and relating to Steam Turbine Installations for Marine Propulsion.
GB109513A Improvements in and relating to Marine Propulsion.
GB109633A Improvements in and relating to Superheating Apparatus for Boilers of the Fire-tube Type.
GB106323A Improvements in and relating to Pipe Joints, and in Appliances therefor.
CA196079A Condenser
CA298593A Thermostatic control device for the circulation of cooling water of internal combustion engines