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European patent · EP4399386 · In force

Register entry

Publication number
EP4399386
Application number
EP22754218
Kind
European patent with effect for Switzerland and Liechtenstein
Status
In force
Specification
Granted
Filed
Jul 14, 2022
Published
Jul 17, 2024
Granted
Oct 22, 2025
Protection ends at the latest
Jul 13, 2042
Next annual fee due
Jul 31, 2026
IPC classes
E21B 17/10 (2006.01)
E21B 33/038 (2006.01)
E21B 33/04 (2006.01)
Priority
US 202117470353 09.09.2021
PCT application
PCT/US2022/037066 14.07.2022
PCT publication
WO2023/038704 16.03.2023
Filing language
English
Source
Swissreg

History

What the Federal Institute of Intellectual Property published about this title, newest first.

  1. Sep 2, 2026

    Change

    Published in Swissreg on 02.09.2026

  2. Oct 22, 2025

    Granted

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

    Published in Swissreg on 22.10.2025

Parties

Inventor

BOURGEOIS, Jeff

Houston, TX 77079, US

DAVIDSON, Ian Mcclymont

Houston, TX 77079, US

The register names each party by name and address. A holder or agent is linked to an organization where exactly one entity of the commercial register bears its name; the street of a party not so recognised is not shown here.