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CHARBONNAGES DE FRANCE

Overview
  • Total Patents
    1,530
About

CHARBONNAGES DE FRANCE has a total of 1,530 patent applications. Its first patent ever was published in 1948. It filed its patents most often in France, United Kingdom and Germany. Its main competitors in its focus markets civil engineering, chemical engineering and measurement are TSUDA TAKAO, ADVANCED POLYMER MONITORING TECH INC and RETT CORP.

Patent filings per year

Chart showing CHARBONNAGES DE FRANCEs patent filings per year from 1900 to 2020

Top inventors

# Name Total Patents
#1 Kita Jean-Claude 38
#2 Rose Gerard 31
#3 Boutonnat Maurice 28
#4 Marlair Guy 22
#5 Large Jean-Francois 18
#6 Courbon Paul 18
#7 Chauvin Raymond 17
#8 Merry Jean-Louis 17
#9 Accorsi Antoinette 16
#10 Puff Roger Marcel 16

Latest patents

Publication Filing date Title
PL291132A1 Method of slacking burnt lime contained in ashes
AU7072991A Process for the slaking of quick lime contained in ashes
FR2660929A1 Device for preparing and providing a coal bread.
FR2655801A1 Method and device for transmitting video signals in a confined medium.
EP0373045A1 Portable personal sampler for collecting a given fraction of airborne particles
FR2647031A1 Device for extracting particle material from a fluidized bed outside the fluidization enclosure
FR2646718A1 Device for creating a modification of light transmission in optical fiber
FR2645646A1 Pseudo-continuous method for querying an oxidizable gas detector
FR2644184A1 Sliding bearing for railway needle, and application needle
FR2643977A1 Cooled (heatless) spotlamp
FR2643571A1 Non-mechanical solid flow regulator established between two fluidized media
FR2642831A1 Security packaging method and medium for an explosive cord, resulting in a coil
FR2640784A1 Well telealarm
FR2638997A1 Tool for translationally moving a rod into a hole whose cross-section matches that of the rod
FR2638834A1 Sample holder for fourier transformed spectrophotometer and spectrophotometer comprising same
FR2635470A1 Device for supplying fluidizing gas to the openings of a support grid of a bed of particles to be fluidized
CN1019331B Manufacture of self-sustainings film filament type sensor and application of same
FR2631347A1 Improved process for the manufacture of moulded coke
EP0282368A1 Polyurethane-based compositions for the preparation of bio-degradable materials by calandering
FR2626193A1 Method and device for the homogeneization of a gas mixture in a container