GAS LIFT VALVE
- Application ID: EP13834902
- Status: █ EXAMINATION IN PROGRESS
This EP application has the IPC class E21 (EARTH OR ROCK DRILLING; MINING). Schlumberger SA and Schlumberger Cambridge Research Ltd are specialized in E21. Schlumberger Cambridge Research Ltd is specialised in E21 (EARTH OR ROCK DRILLING; MINING). Here you find a list of all patent agent firms which are specialized in this IPC class. For a similar patent, they might be a good choice.