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DUFRESNE PIERRE

Overview
  • Total Patents
    11
About

DUFRESNE PIERRE has a total of 11 patent applications. Its first patent ever was published in 1951. It filed its patents most often in United States, United Kingdom and Canada. Its main competitors in its focus markets basic materials chemistry, chemical engineering and machines are NIPPON KETJEN CO LTD, SYNFUELS CHINA INNER MONGOLIA CO LTD and NIPPON KECCHEN KK.

Patent filings in countries

World map showing DUFRESNE PIERREs patent filings in countries
# Country Total Patents
#1 United States 5
#2 United Kingdom 4
#3 Canada 1
#4 Switzerland 1

Patent filings per year

Chart showing DUFRESNE PIERREs patent filings per year from 1900 to 2020

Top inventors

# Name Total Patents
#1 Dufresne Pierre 6
#2 Galliou Pauline 3
#3 Nagy Eric 2
#4 Meens Maxime 2
#5 Romano Loredana 1
#6 Pierre Dufresne 1
#7 Bremaud Mickaël 1
#8 Labruyere Franck 1
#9 Bremaud Mickael 1
#10 Kirumakki Sharath 1

Latest patents

Publication Filing date Title
GB0607128D0 In-situ water and soil treatment method and system
GB0504036D0 In-situ water and soil treatment method and system
GB0404610D0 In-situ water and soil treatment method and system
GB0303686D0 In-situ water and soil treatment method and system
CA2215301A1 Mini wind deflector