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Extract from the Register of European Patents

EP About this file: EP3912023

EP3912023 - A METHOD FOR GENERATING RANDOM NUMBERS IN BLOCKCHAIN SMART CONTRACTS [Right-click to bookmark this link]
StatusThe application has been withdrawn
Status updated on  16.12.2022
Database last updated on 18.09.2024
FormerRequest for examination was made
Status updated on  22.10.2021
FormerThe international publication has been made
Status updated on  25.07.2020
Most recent event   Tooltip16.12.2022Withdrawal of applicationpublished on 18.01.2023  [2023/03]
Applicant(s)For all designated states
ZeU Technologies, Inc.
230 Rue Notre-Dame Ouest
Montreal, QC H2Y 1T3 / CA
[N/P]
Former [2021/47]For all designated states
ZeU Technologies, Inc.
230 rue Notre-Dame Quest
Montreal, QC H2Y 1T3 / CA
Inventor(s)01 / DUMAS, Francois
12787 Bedford
Montreal, Québec H9A 1C1 / CA
02 / QIAN, Yuming
99 Cartier Crescent
Richmond Hill, Ontario L4C 2N3 / CA
[N/P]
Former [2021/47]01 / DUMAS, Francois
Montreal, Québec H9A 1C1 / CA
02 / QIAN, Yuming
Richmond Hill, Ontario L4C 2N3 / CA
Representative(s)Pfenning, Meinig & Partner mbB
Patent- und Rechtsanwälte
Joachimsthaler Straße 10-12
10719 Berlin / DE
[2021/47]
Application number, filing date20741818.720.01.2020
[2021/47]
WO2020CA50056
Priority number, dateUS201962794336P18.01.2019         Original published format: US 201962794336 P
[2021/47]
Filing languageEN
Procedural languageEN
PublicationType: A1 Application with search report
No.:WO2020146955
Date:23.07.2020
Language:EN
[2020/30]
Type: A1 Application with search report 
No.:EP3912023
Date:24.11.2021
Language:EN
The application published by WIPO in one of the EPO official languages on 23.07.2020 takes the place of the publication of the European patent application.
[2021/47]
Search report(s)International search report - published on:CA23.07.2020
(Supplementary) European search report - dispatched on:EP09.09.2022
ClassificationIPC:G06F7/58, G06F16/27, G06F21/64
[2021/47]
CPC:
G06F7/58 (EP,IL,KR); G06F16/9024 (EP,IL,KR); G06F21/64 (EP,IL,KR);
H04L9/0662 (EP,IL,KR); H04L9/3239 (EP,IL,KR); H04L9/3247 (EP,IL,KR);
H04L9/50 (EP,IL,KR) (-)
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 [2021/47]
TitleGerman:VERFAHREN ZUR ERZEUGUNG VON ZUFALLSZAHLEN IN INTELLIGENTEN BLOCKCHAIN-VERTRÄGEN[2021/47]
English:A METHOD FOR GENERATING RANDOM NUMBERS IN BLOCKCHAIN SMART CONTRACTS[2021/47]
French:PROCÉDÉ DE GÉNÉRATION DE NOMBRES ALÉATOIRES DANS DES CONTRATS INTELLIGENTS À CHAÎNE DE BLOCS[2021/47]
Entry into regional phase27.07.2021National basic fee paid 
27.07.2021Search fee paid 
27.07.2021Designation fee(s) paid 
27.07.2021Examination fee paid 
Examination procedure27.07.2021Examination requested  [2021/47]
24.02.2022Amendment by applicant (claims and/or description)
14.12.2022Application withdrawn by applicant  [2023/03]
Fees paidRenewal fee
28.01.2022Renewal fee patent year 03
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Documents cited:Search[I]WO2018104728  (QUANTA TECH LTD [GB]) [I] 1-15 * page 7, line 3 - page 13, line 17 *;
 [I]  - Randao.Org, "Randao: Verifiable Random Number Generation", (20170911), pages 1 - 24, URL: https://randao.org/whitepaper/Randao_v0.85_en.pdf, (20190521), XP055590669 [I] 1-15 * part III *
 [IP]  - CHATTERJEE KRISHNENDU ET AL, "Probabilistic Smart Contracts: Secure Randomness on the Blockchain", 2019 IEEE INTERNATIONAL CONFERENCE ON BLOCKCHAIN AND CRYPTOCURRENCY (ICBC), IEEE, (20190514), doi:10.1109/BLOC.2019.8751326, pages 403 - 412, XP033572005 [IP] 1-15 * page 406, lines 8-25 *

DOI:   http://dx.doi.org/10.1109/BLOC.2019.8751326
International search[A]US2015188704  (TAKENAKA MASAHIKO [JP], et al) [A] 1 to 18* Whole document *;
 [A]WO2017145019  (NCHAIN HOLDINGS LTD [AG]) [A] 1 to 18 * Whole document *;
 [A]US2018191714  (JENTZSCH CHRISTOPH [DE], et al) [A] 1 to 18 * Whole document *
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.