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Patent europeic · EP4435227 · En vigur

Inscripziun en il register

Numer da publicaziun
EP4435227
Numer da la dumonda
EP24192982
Gener
Patent europeic cun effect per la Svizra ed il Liechtenstein
Status
En vigur
Scrittira da patent
Concedì
Annunzià
21-07-2020
Publitgà
25-09-2024
Concedì
29-10-2025
La protecziun finescha il pli tard
20-07-2040
Proxima taxa annuala scadenta
31-07-2026
Classas IPC
E21B 34/14 (2006.01)
E21B 4/02 (2006.01)
E21B 7/24 (2006.01)
E21B 21/10 (2006.01)
E21B 31/00 (2006.01)
Prioritad
US 201962877168 P 22.07.2019
Derivà da
EP20843889
Lingua da l’annunzia
englais
Funtauna
Swissreg

Istorgia

Quai che l’Institut federal da la proprietad intellectuala ha publitgà davart quest titel, il pli nov l’emprim.

  1. 09-09-2026

    Midada

    Published in Swissreg on 09.09.2026

  2. 29-10-2025

    Concedì

    Specification status
    Non-published patent application → Granted patent
    Status of protective title
    Initiated → Active

    Published in Swissreg on 29.10.2025

Partidas

Possessur

National Oilwell Varco, L.P.

7909 Parkwood Circle Drive, Houston, Texas 77036, US

Inventur

TRINH, Khoi

Spring, 77386-2054, US

BHAGWANDIN, Steve

Houston, 77006-3405, US

XIA, Yufang

Houston, 77055-6539, US

FORSTER, Ian

The Woodlands, 77380-3422, US

Il register numna mintga partida cun num ed adressa. In possessur u in represchentant vegn collià cun in’organisaziun, sch’exact ina unitad giuridica dal register da commerzi porta ses num; la via d’ina partida betg enconuschida uschia na vegn betg mussada qua.