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European patent · EP4256130 · In force

Register entry

Publication number
EP4256130
Application number
EP21823337
Kind
European patent with effect for Switzerland and Liechtenstein
Status
In force
Specification
Granted
Filed
Dec 1, 2021
Published
Oct 11, 2023
Granted
Mar 25, 2026
Protection ends at the latest
Nov 30, 2041
Next annual fee due
Dec 31, 2026
IPC classes
D21H 17/26 (2006.01)
D21H 17/27 (2006.01)
D21H 17/28 (2006.01)
D21H 17/37 (2006.01)
D21H 21/18 (2006.01)
D21H 21/20 (2006.01)
D21H 11/14 (2006.01)
Priority
FI 20206240 02.12.2020
PCT application
PCT/FI2021/050831 01.12.2021
PCT publication
WO2022/117921 09.06.2022
Filing language
English
Source
Swissreg

History

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

  1. Apr 16, 2026

    Change

    Published in Swissreg on 16.04.2026

  2. Apr 2, 2026

    Owner

    Owner
    Kemira OYJ, Energiakatu 4, Helsinki 00180, Finland → Kemira OYJ, Energiakatu 4, 00180 Helsinki, Finland

    Published in Swissreg on 02.04.2026

  3. Mar 25, 2026

    Granted

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

    Published in Swissreg on 25.03.2026

Parties

Holder

Kemira Oyj

Kemira OYJ

Energiakatu 4, 00180 Helsinki, FI

Inventor

HIETANIEMI, Matti

02270 Espoo, FI

KARPPI, Asko

02270 Espoo, FI

KORHONEN, Markus

02270 Espoo, FI

KVIST, Markus

02270 ESPOO, FI

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.