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ROBERT STEPHEN WALKER

Overview
  • Total Patents
    12
About

ROBERT STEPHEN WALKER has a total of 12 patent applications. Its first patent ever was published in 1919. It filed its patents most often in Canada, France and United Kingdom. Its main competitors in its focus markets environmental technology and thermal processes are WAINWRIGHT HARRY SMITH, ZHEJIANG TIANDI ENVIRONMENTAL PROT ENGINEERING CO LTD and GUY CARPENTER.

Patent filings in countries

World map showing ROBERT STEPHEN WALKERs patent filings in countries
# Country Total Patents
#1 Canada 6
#2 France 2
#3 United Kingdom 2
#4 Australia 1
#5 Germany 1

Patent filings per year

Chart showing ROBERT STEPHEN WALKERs patent filings per year from 1900 to 2020

Focus industries

# Industry
#1 Environmental technology
#2 Thermal processes

Top inventors

# Name Total Patents
#1 Worthington Edward B 4
#2 Lotz Charles W 2
#3 Walker Robert Stephen 2
#4 Robert Stephen Walker 1

Latest patents

Publication Filing date Title
GB166124A Improvements in method of and means for burning pulverulent fuels
AU1645320B Method of and means fop burning 1 pulverulent fuels
GB139158A Method of and means for burning pulverulent fuels
CA249164A Furnace
CA248743A Furnace for buring pulverulent fuels
CA247839A Method of and means for burning pulverulent fuels
CA247840A Method of and means for burning pulverulent fuel
CA249163A Method of and means for burning pulverulent fuels
CA248734A Method of and means for burning pulverulent fuels