Patents/Assignees

OURO NEGRO TECNOLOGIAS EM EQUIPAMENTOS INDUSTRIAIS S/A

3 patents in portfolio

US12540533utility2026
Gas Injection Valve in an Oil Production Column
0 cites
US12221855utility2025
Electromagnetic-mechanical Locking Device Applied to Subsurface Safety Valve
0 cites
US11927072utility2024
Valve for Downhole Chemical Injection Control
0 cites