Inventor

SMARANDACHE MARIUS

US5 patents

Patents

5 patents

US10487652B2Nov 26, 2019

Downhole sampling tool with check valve piston

SCHLUMBERGER TECHNOLOGY CORP2 citations68

US10669847B2Jun 2, 2020

Double Rod Lock System

SCHLUMBERGER TECHNOLOGY CORP2 citations65

US12421826B1Sep 23, 2025

Sealing device

SCHLUMBERGER TECHNOLOGY CORP0 citations53

US12523140B2Jan 13, 2026

Shock damping ring design for downhole electronic systems

SCHLUMBERGER TECHNOLOGY CORP0 citations47

US12571306B1Mar 10, 2026

Pressure compensated locking sampling tool

SCHLUMBERGER TECHNOLOGY CORP0 citations38