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DUPONT S T

Overview
  • Total Patents
    526
  • GoodIP Patent Rank
    191,835
  • Filing trend
    ⇧ 400.0%
About

DUPONT S T has a total of 526 patent applications. It increased the IP activity by 400.0%. Its first patent ever was published in 1950. It filed its patents most often in France, United States and United Kingdom. Its main competitors in its focus markets thermal processes, mechanical elements and consumer goods are IWAHORI MASAYUKI, TOKAI CORP and ALLUMOIRS SA CIE.

Patent filings per year

Chart showing DUPONT S Ts patent filings per year from 1900 to 2020

Top inventors

# Name Total Patents
#1 Grossiord Claude 40
#2 Calgaro Honore 14
#3 Royer Michel 11
#4 Dietze Karl Heinz 10
#5 Grossiord Claude R 9
#6 Malamoud Jean Gaston 8
#7 Royer Michel E 8
#8 Kawam Antoine 7
#9 Malamoud Jean G 7
#10 Malamoud J 7

Latest patents

Publication Filing date Title
FR3068767A1 LIGHTER READY TO ISSUE TWO DIFFERENT FLAMES IN ALTERNANCE
FR2937223A1 Cigar cutters
FR2695810A1 Perfect setting.
FR2693953A1 Writing instrument with lead.
FR2686291A1 Writing instrument with a mine or ball writing member.
FR2650976A1 Object with decorative character, having variable appearance according to its angle of observation, and method for producing such an object
FR2616383A1 Writing instrument with removable writing block
FR2605552A1 Hood stylographer with staple, using ink cartridges
FR2605089A1 Lighter comprising a swinging cover articulated on the lighter body
FR2600787A1 MANUAL CONTROL SYSTEM AND ITS USE IN A MULTI-FUNCTION WATCHMAKING MOVEMENT
FR2589398A1 Improvements on writing instruments comprising a cap covered on the body
FR2589336A1 CHAINETTE KEY CHAIN
FR2587129A1 Device for detecting the immediate exhaustion of gas of a liquefied gas tank and gas lighter equipped with this device
US4809551A Device for detecting the liquid level in a tank, particularly a lighter tank and tank provided with such device
FR2582918A1 SAFETY KEY HOLDER OF THE RING TYPE.
FR2572498A1 Liquefied gas lighter, with a flat flame extended in its medium part
FR2572553A1 Watches or the like having a date type display device
FR2557512A3 Process for the production on the surface of an object of a relief decoration of the guillochis type and objects carrying such a decor
EP0113274A1 Pens with exchangeable cartridges
GB8327472D0 Device for attaching a strap to a watch case