blank Quick help
blank Maintenance news

Scheduled maintenance

Regular maintenance outages:
between 05.00 and 05.15 hrs CET (Monday to Sunday).

Other outages
Availability

2022.02.11

More...
blank News flashes

News Flashes

New version of the European Patent Register – SPC proceedings information in the Unitary Patent Register.

2024-07-24

More...
blank Related links

Extract from the Register of European Patents

EP About this file: EP3977674

EP3977674 - KNOWLEDGE PROOF [Right-click to bookmark this link]
StatusRequest for examination was made
Status updated on  04.03.2022
Database last updated on 01.10.2024
FormerThe international publication has been made
Status updated on  05.12.2020
Formerunknown
Status updated on  01.06.2020
Most recent event   Tooltip13.03.2024New entry: Renewal fee paid 
Applicant(s)For all designated states
nChain Licensing AG
Grafenauweg 6
6300 Zug / CH
[2022/37]
Former [2022/14]For all designated states
Nchain Holdings Limited
Fitzgerald House
44 Church Street
St. John's / AG
Inventor(s)01 / WAHAB, Jad
c/o nChain Holdings Limited 30 Market Place
London W1W 8AP / GB
02 / ZHANG, Wei
c/o nChain Holdings Limited 30 Market Place
London W1W 8AP / GB
03 / DOIRON, Brock
c/o nChain Holdings Limited 30 Market Place
London W1W 8AP / GB
04 / WRIGHT, Craig
c/o nChain Holdings Limited 30 Market Place
London W1W 8AP / GB
 [2022/14]
Representative(s)Page White Farrer
Bedford House
21a John Street
London WC1N 2BF / GB
[N/P]
Former [2022/14]Townsend, Martyn, et al
Page White & Farrer Bedford House John Street
London WC1N 2BF / GB
Application number, filing date20727703.921.04.2020
[2022/14]
WO2020IB53762
Priority number, dateGB2019000739724.05.2019         Original published format: GB 201907397
[2022/14]
Filing languageEN
Procedural languageEN
PublicationType: A1 Application with search report
No.:WO2020240289
Date:03.12.2020
Language:EN
[2020/49]
Type: A1 Application with search report 
No.:EP3977674
Date:06.04.2022
Language:EN
The application published by WIPO in one of the EPO official languages on 03.12.2020 takes the place of the publication of the European patent application.
[2022/14]
Search report(s)International search report - published on:EP03.12.2020
ClassificationIPC:H04L9/32
[2022/14]
CPC:
H04L9/3252 (EP,CN,US); H04L9/3218 (KR); H04L9/3271 (EP,CN,KR);
G06Q40/04 (CN); H04L67/104 (CN); H04L9/3066 (KR);
H04L9/3239 (EP,CN,KR); H04L9/50 (EP,KR); H04L2209/56 (CN) (-)
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 [2022/14]
TitleGerman:WISSENSNACHWEIS[2022/14]
English:KNOWLEDGE PROOF[2022/14]
French:PREUVE DE CONNAISSANCE[2022/14]
Entry into regional phase01.12.2021National basic fee paid 
01.12.2021Designation fee(s) paid 
01.12.2021Examination fee paid 
Examination procedure01.12.2021Examination requested  [2022/14]
01.12.2021Date on which the examining division has become responsible
11.05.2022Amendment by applicant (claims and/or description)
Fees paidRenewal fee
16.03.2022Renewal fee patent year 03
14.03.2023Renewal fee patent year 04
13.03.2024Renewal fee patent year 05
Opt-out from the exclusive  Tooltip
competence of the Unified
Patent Court
See the Register of the Unified Patent Court for opt-out data
Responsibility for the accuracy, completeness or quality of the data displayed under the link provided lies entirely with the Unified Patent Court.
Cited inInternational search[A]US2010308978  (BROWN DANIEL RICHARD L [CA]);
 [A]WO2018225053  (UNIV BAR ILAN [IL]);
 [A]WO2019034951  (NCHAIN HOLDINGS LTD [AG])
The EPO accepts no responsibility for the accuracy of data originating from other authorities; in particular, it does not guarantee that it is complete, up to date or fit for specific purposes.