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DREYFUS GERARD

Overview
  • Total Patents
    13
About

DREYFUS GERARD has a total of 13 patent applications. Its first patent ever was published in 1977. It filed its patents most often in France, Belgium and Canada. Its main competitors in its focus markets measurement and electrical machinery and energy are BONAR BRAY LTD, J B T INSTR INC and SCHWEITZER EDMUND O.

Patent filings in countries

World map showing DREYFUS GERARDs patent filings in countries

Patent filings per year

Chart showing DREYFUS GERARDs patent filings per year from 1900 to 2020

Focus industries

Top inventors

# Name Total Patents
#1 Dreyfus Gerard 4
#2 Perino Didier 3
#3 Lewiner Jacques 3
#4 Deideie Perino 1
#5 Jiyatsukii Reuinaa 1
#6 Jierarudo Doreifu 1

Latest patents

Publication Filing date Title
US4227086A Detectors of parameters adapted to act on the force of attraction between an electret and an electrode