OPTISCHE FASER

European patent · EP3901675 · In force

Register entry

Publication number
EP3901675
Application number
EP21168439
Kind
European patent with effect for Switzerland and Liechtenstein
Status
In force
Specification
Granted
Filed
Apr 14, 2021
Published
Oct 27, 2021
Granted
Nov 26, 2025
Protection ends at the latest
Apr 13, 2041
Next annual fee due
Apr 30, 2026
IPC classes
G02B 6/036 (2006.01)
Priority
JP 2020076680 23.04.2020
JP 2021022308 16.02.2021
Filing language
English
Source
Swissreg

History

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

  1. Oct 7, 2026

    Change

    Published in Swissreg on 07.10.2026

  2. Nov 26, 2025

    Granted

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

    Published in Swissreg on 26.11.2025

Parties

Holder

SHIN-ETSU CHEMICAL CO., LTD.

6-1, Ohtemachi 2-chome Chiyoda-ku, Tokyo 100-0004, JP

Inventor

KOJIMA, Hiroki

Kamisu-shi, Ibaraki 314-0102, JP

INOUE, Dai

Kamisu-shi, Ibaraki 314-0102, 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.