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PRINCIPIA RECH DEV

Overview
  • Total Patents
    34
About

PRINCIPIA RECH DEV has a total of 34 patent applications. Its first patent ever was published in 1985. It filed its patents most often in EPO (European Patent Office), France and Brazil. Its main competitors in its focus markets civil engineering, environmental technology and measurement are MARUSHIMA HYDRAULIC GATE, ISHIZUKA OTOKICHI and YAMASAN KK.

Patent filings per year

Chart showing PRINCIPIA RECH DEVs patent filings per year from 1900 to 2020

Top inventors

# Name Total Patents
#1 Guevel Pierre 22
#2 Landel Eric 18
#3 Bouchet Rene 6
#4 Viaud Jean-Luc 5
#5 Manzone Jean-Michel 4
#6 Bardey Philippe 3
#7 Vacherand Francois 2
#8 Pierre Guevel 2
#9 Fanton D Andon Odile 2
#10 Rene Bouchet 1

Latest patents

Publication Filing date Title
HRP940659B1 Sea-wave shock absorber
FR2696230A1 Method for drying wood planks on palettes - includes covering planks with flexible waterproof material envelope, with its base sealed and subject to warm air blown into envelope and extracted from opposite side and dehumidified
EP0454601A1 Process for damping acoustic waves in a circuit of circulating fluid
US5024396A Air or submarine engine with improved contour
EP0346554A1 Structure for the attenuation of waves
WO8806739A1 Process and device for establishing the cohesion curve of an ocean floor at great depth
US4810129A Arrangement for generating waves in a body of water
FR2607876A2 Swell generator
FR2607875A2 Swell generator
WO8703260A1 Deep submarine anchoring method
FR2602012A1 Swell generator
FR2576337A1 Swell attenuator