Extract from the Register of European Patents

EP About this file: EP4209944

EP4209944 - A USER AUTHENTICATION BASED ON A BLOCKCHAIN [Right-click to bookmark this link]
StatusThe patent has been granted
Status updated on  29.08.2025
Database last updated on 14.03.2026
FormerGrant of patent is intended
Status updated on  07.05.2025
FormerRequest for examination was made
Status updated on  30.04.2025
FormerGrant of patent is intended
Status updated on  23.04.2025
FormerRequest for examination was made
Status updated on  15.12.2023
FormerThe application has been published
Status updated on  09.06.2023
Most recent event   Tooltip29.08.2025(Expected) grantpublished on 01.10.2025  [2025/40]
Applicant(s)For all designated states
Nokia Technologies Oy
Karakaari 7
02610 Espoo / FI
[2025/40]
Former [2023/28]For all designated states
Nokia Technologies Oy
Karakaari 7
02610 Espoo / FI
Inventor(s)01 / VAN DEN BROECK, Marc
Sint-Katelijne-Waver / BE
02 / ACER, Utku Gunay
Antwerp / BE
03 / MATHUR, Akhil
London / GB
04 / KAWSAR, Fahim
Cambridge / GB
05 / MIN, Chulhong
Cambridge / GB
06 / MONTANARI, Alessandro
Cambridge / GB
 [2023/28]
Representative(s)Laine IP Oy
Porkkalankatu 24
00180 Helsinki / FI
[2025/40]
Former [2023/28]Nokia EPO representatives
Nokia Technologies Oy
Karakaari 7
02610 Espoo / FI
Application number, filing date22150646.210.01.2022
[2023/28]
Filing languageEN
Procedural languageEN
PublicationType: A1 Application with search report 
No.:EP4209944
Date:12.07.2023
Language:EN
[2023/28]
Type: B1 Patent specification 
No.:EP4209944
Date:01.10.2025
Language:EN
[2025/40]
Search report(s)(Supplementary) European search report - dispatched on:EP14.06.2022
ClassificationIPC:G06F21/32, G06F21/64, H04L9/00
[2023/28]
CPC:
G06F21/64 (EP); G06F21/32 (EP); H04L9/3231 (EP);
H04L9/50 (EP)
Designated contracting statesAL,   AT,   BE,   BG,   CH,   CY,   CZ,   DE,   DK,   EE,   ES,   FI,   FR,   GB,   GR,   HR,   HU,   IE,   IS,   IT,   LI,   LT,   LU,   LV,   MC,   MK,   MT,   NL,   NO,   PL,   PT,   RO,   RS,   SE,   SI,   SK,   SM,   TR [2024/03]
Former [2023/28]AL,  AT,  BE,  BG,  CH,  CY,  CZ,  DE,  DK,  EE,  ES,  FI,  FR,  GB,  GR,  HR,  HU,  IE,  IS,  IT,  LI,  LT,  LU,  LV,  MC,  MK,  MT,  NL,  NO,  PL,  PT,  RO,  RS,  SE,  SI,  SK,  SM,  TR 
TitleGerman:BENUTZERAUTHENTIFIZIERUNG BASIEREND AUF EINER BLOCKCHAIN[2023/28]
English:A USER AUTHENTICATION BASED ON A BLOCKCHAIN[2023/28]
French:AUTHENTIFICATION D'UTILISATEUR BASÉE SUR UNE CHAÎNE DE BLOCS[2023/28]
Examination procedure13.12.2023Amendment by applicant (claims and/or description)
13.12.2023Examination requested  [2024/03]
13.12.2023Date on which the examining division has become responsible
24.04.2025Communication of intention to grant the patent
29.04.2025Disapproval of the communication of intention to grant the patent by the applicant or resumption of examination proceedings by the EPO
07.05.2025Communication of intention to grant the patent
22.08.2025Fee for grant paid
22.08.2025Fee for publishing/printing paid
22.08.2025Receipt of the translation of the claim(s)
Fees paidRenewal fee
14.12.2023Renewal fee patent year 03
18.12.2024Renewal fee patent year 04
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Documents cited:Search[XA] WO2018089098  (AWARE INC et al.) [X] 18 * paragraph [0004] * * paragraph [0097] * * paragraph [0093] * * paragraph [0089] - paragraph [0090] * * paragraph [0091] * * paragraph [0092] * * paragraph [0052] * * paragraph [00116] * * paragraph [00122] * * paragraph [00123] * * paragraph [00132] * * paragraph [00115] * * figures 7A,7B,8A,8B,9A,9B *[A] 1-17
 [XA] US2020296091  (LIDSKY OFER A et al.) [X] 18 * paragraph [0155] * * paragraph [0062] * * paragraph [0063] * * paragraph [0064] * * paragraph [0066] * * paragraph [0093] * * paragraph [0104] *[A] 1-17
 [XA] US2020065463  (RYU YOUNGSUN et al.) [X] 18 * paragraph [0100] * * paragraph [0103] - paragraph [0104] * * paragraph [0101] * * paragraph [0102] * * figure 9 *[A] 1-17
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