YC

Yvon Castel

IP Institut Francais Du Petrole: 24 patents #46 of 1,676Top 3%
SA Societe Nationale Elf Aquitaine: 5 patents #32 of 490Top 7%
Overall (All Time): #120,017 of 4,157,543Top 3%
31
Patents All Time

Issued Patents All Time

Showing 26–31 of 31 patents

Patent #TitleCo-InventorsDate
4541755 Device and process for lowering and connecting the four guide lines to guide posts of an underwater station Michel Iato 1985-09-17
4501056 Tool for disconnecting a guideline connector and a process for using same Michel Iato 1985-02-26
4400112 Connecting and disconnecting device for a guide line Michel Iato 1983-08-23
4331207 Device for reversing the direction of flow of a fluid at the level of a drill bit 1982-05-25
4240513 Drill bit with suction jet means Henri Cholet 1980-12-23
4239087 Drill bit with suction jet means Henri Cholet 1980-12-16