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HAROLD CECIL GREENWOOD

Overview
  • Total Patents
    12
About

HAROLD CECIL GREENWOOD has a total of 12 patent applications. Its first patent ever was published in 1918. It filed its patents most often in France, Switzerland and Germany. Its main competitors in its focus markets materials and metallurgy, chemical engineering and environmental technology are NITROGEN ENGINEERING CORP, PATENTVERWERTUNGS A G ALPINA S and SYNTHETIC AMMONIA & NITRATES.

Patent filings in countries

World map showing HAROLD CECIL GREENWOODs patent filings in countries
# Country Total Patents
#1 France 5
#2 Switzerland 3
#3 Germany 2
#4 Australia 1
#5 United Kingdom 1

Patent filings per year

Chart showing HAROLD CECIL GREENWOODs patent filings per year from 1900 to 2020

Top inventors

# Name Total Patents
#1 Greenwood Harold Cecil 5
#2 Cecil Greenwood Harold 3
#3 Harold Cecil Greenwood 1
#4 Ronald Tate William 1
#5 Tate William Renald 1

Latest patents

Publication Filing date Title
GB229354A Improvements in the construction of catalyst furnaces for use in the synthesis of ammonia or in similar gaseous reactions or operations
AU694618B Improvements inthe synthetic production of ammonia