Every night, the online Belgian patent register ('eRegister') receives an update with public data that were entered or generated the preceding day on the Benelux Patent Platform, the computer application with which the Belgian Intellectual Property Office handles the registration, treatment and publication processes for patents and supplementary protection certificates.
Currently, some updates are spread over consecutive nights due to the large, weekly volume of data concerning European patents designating Belgium.
For a European patent it is possible that data about the inventor(s) are missing from the online Belgian patent register. They can be found via the link to the European patent register pending an update of the Belgian patent register.
For European patents with Unitary Effect, the authentic source of information is the European Patent Register : please refer to it.

Patent details

3972643 Title: ANTAGONISTES DU SYSTÈME DU COMPLÉMENT POUR UNE UTILISATION DANS UNE MÉTHODE DE TRAITEMENT DES NEUROPATHIES PARAPROTÉINÉMIQUES

The time of generation of the report may vary depending on the number of the selected files and the pages of each file. If the generation of the consolidated PDF file takes long, you may reduce the number of selected files and proceed with the generation of the PDF in batches.
You have not selected any documents

Basic information

Application number:
207296534
WO application number:
EP2020064234
Type:
European patent granted for BE
Status:
Open
Publication number:
3972643
WO publication number:
WO2020234432
1rst applicant's nationality:
Translation language:
EPO publication language:
English
SPC number:

Dates

Filing date:
21/05/2020
Grant date:
14/05/2025
EP publication date:
30/03/2022
WO publication date:
26/11/2020
Claims translation received date:
Translation received date (EP publication B1):
Translation received date (EP publication B2):
Translation received date (EP publication B3):
Registration date:
14/05/2025
EP B1 publication date:
14/05/2025
EP B2 publication date:
EP B3 publication date:
Lapsed date:
Expiration date (if granted and all annual fees paid):
21/05/2040

Applicant

Name:
argenx BV
Legal Form:
From:
14/05/2025
Address:
Industriepark-Zwijnaarde 7, 9052 Gent, Belgium (BE)
To:

Agent

Name:
NLO
Legal Form:
From:
26/06/2025
Address:
New Babylon City Offices Anna van Buerenplein 21A, 2595 DA DEN HAAG, Netherlands (NL)
To:

Inventor

1

Name:
BLANCHETOT, Christophe
Legal Form:
Address:
9052 Gent, Belgium (BE)

2

Name:
BUDDING, Kevin
Legal Form:
Address:
3451XJ Vleuten, Netherlands (NL)

3

Name:
HACK, Erik
Legal Form:
Address:
1111BV Diemen, Netherlands (NL)

4

Name:
SILENCE, Karen
Legal Form:
Address:
9052 Gent, Belgium (BE)

5

Name:
VAN DE WALLE, Inge
Legal Form:
Address:
9052 Gent, Belgium (BE)

6

Name:
VAN DER POL, Ludo
Legal Form:
Address:
3818JH Amersfoort, Netherlands (NL)

7

Name:
BOROSS, Peter
Legal Form:
Address:
3522ER Utrecht, Netherlands (NL)

Priority

Priority patent number:
201907153
Priority date:
21/05/2019
Priority country:
United Kingdom (GB)

Classification

IPC or IDT classification:
A61K 39/395; A61P 25/02;

Publication

Bulletin

Bulletin heading:
EP2
Journal edition number:
2025/09
Publication date:
10/07/2025
Description:
Contains data concerning European patents granted and published (B1 publication) for Belgium and for which no translation needed to be filed

European Patent Bulletin

Issue number:
202520
Publication date:
14/05/2025
Description:
Grant (B1)

Annual fee

Annual fee(s) Due Date:
01/06/2026
Annual fee number:
7
Annual fee amount:
110 Euro
Expected payer:
Last annual fee payment date:
16/06/2025
Last annual fee paid number:
6
Last annual fee paid amount:
95 Euro
Payer:
CPA GLOBAL (PATRAFEE) AB
Filing date Document type Publication Type Document Description Number of pages File Type
26/06/2025 Incoming Correspondence (Email) Cover letter 1 PDF /2/8/6/7/3/0722537682/docs/207296534_0_incomingcorrespondenceelectronic_20250627_084531586.pdf
26/06/2025 Outgoing Correspondence 1 PDF /2/8/6/7/3/0722537682/docs/207296534_1_outgoingcorrespondence_20250627_084531369.pdf
26/06/2025 General Document Declaration of domicile 2 PDF /2/8/6/7/3/0722537682/docs/207296534_2_generaldocument_20250627_084531481.pdf