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European patent · EP4170392 · In force

Register entry

Publication number
EP4170392
Application number
EP21825445
Kind
European patent with effect for Switzerland and Liechtenstein
Status
In force
Specification
Granted
Filed
May 31, 2021
Published
Apr 26, 2023
Granted
Oct 15, 2025
Protection ends at the latest
May 30, 2041
Next annual fee due
May 31, 2026
IPC classes
G02B 1/111 (2015.01)
G02B 1/14 (2015.01)
G02B 1/18 (2015.01)
G02B 5/00 (2006.01)
Priority
JP 2020104394 17.06.2020
PCT application
PCT/JP2021/020584 31.05.2021
PCT publication
WO2021/256229 23.12.2021
Filing language
Japanese
Source
Swissreg

History

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

  1. Aug 26, 2026

    Change

    Published in Swissreg on 26.08.2026

  2. Oct 15, 2025

    Granted

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

    Published in Swissreg on 15.10.2025

Parties

Holder

MITSUBISHI GAS CHEMICAL COMPANY, INC.

5-2, Marunouchi 2-chome, Chiyoda-ku Tokyo 100-8324, JP

Inventor

YAMAMOTO, Yoshiaki

Tokorozawa-shi, Saitama 359-1164, JP

WAKAYAMA, Shota

Tokyo 125-8601, JP

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.