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Extract from the Register of European Patents

EP About this file: EP3675413

EP3675413 - AN EFFICIENT THRESHOLD DISTRIBUTED ELLIPTIC CURVE KEY GENERATION AND SIGNATURE METHOD AND SYSTEM [Right-click to bookmark this link]
StatusNo opposition filed within time limit
Status updated on  07.10.2022
Database last updated on 26.06.2024
FormerThe patent has been granted
Status updated on  29.10.2021
FormerGrant of patent is intended
Status updated on  22.06.2021
FormerRequest for examination was made
Status updated on  09.10.2020
FormerThe application has been published
Status updated on  29.05.2020
Most recent event   Tooltip17.05.2024Lapse of the patent in a contracting state
New state(s): HU		published on 19.06.2024  [2024/25]
Applicant(s)For all designated states
Blue Helix
Room 11191, 11th Floor, A Block
Dong San Huan Bei Road
Xiaguangli 18
Chagoyang District
Beijing / CN
[2021/48]
Former [2020/27]For all designated states
Blue Helix
Room 11191, 11th Floor, A Block
Dong San Huan Bei Road
Xiaguangli 18
Chagoyang District
Beijing / CN
Inventor(s)01 / LIN, Yuqi
Room 11191, 11th Floor, A Block
Dong San Huan Bei Road
Chaoyang District, Beijing Xiaguangli 18 / CN
02 / WEN, Kai
Room 11191, 11th Floor, A Block
Dong San Huan Bei Road
Chaoyang District, Beijing Xiaguangli 18 / CN
03 / JIANG, Kailiang
Room 11191, 11th Floor, A Block
Dong San Huan Bei Road
Chaoyang District, Beijing Xiaguangli 18 / CN
04 / JU, Jianhua
Room 11191, 11th Floor, A Block
Dong San Huan Bei Road
Chaoyang District, Beijing Xiaguangli 18 / CN
 [2020/27]
Representative(s)MacDougall, Alan John Shaw, et al
Mathys & Squire The Shard
32 London Bridge Street
London SE1 9SG / GB
[2021/48]
Former [2020/27]Strachan, Victoria Jane, et al
Mathys & Squire LLP The Shard
32 London Bridge Street
London SE1 9SG / GB
Application number, filing date19184786.205.07.2019
[2020/27]
Priority number, dateCN20181161050327.12.2018         Original published format: CN201811610503
[2020/27]
Filing languageEN
Procedural languageEN
PublicationType: A1 Application with search report 
No.:EP3675413
Date:01.07.2020
Language:EN
[2020/27]
Type: B1 Patent specification 
No.:EP3675413
Date:01.12.2021
Language:EN
[2021/48]
Search report(s)(Supplementary) European search report - dispatched on:EP08.11.2019
ClassificationIPC:H04L9/08, H04L9/32, H04L9/30, H04L9/00
[2020/27]
CPC:
H04L9/085 (EP,US); H04L9/3073 (US); H04L9/008 (EP,US);
H04L9/0894 (US); H04L9/3066 (EP); H04L9/3252 (EP,US)
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 [2020/46]
Former [2020/27]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:EFFIZIENTE SCHWELLENVERTEILTE ELLIPTISCHE KURVENSCHLÜSSELERZEUGUNG SOWIE SIGNATURVERFAHREN UND -SYSTEM[2020/27]
English:AN EFFICIENT THRESHOLD DISTRIBUTED ELLIPTIC CURVE KEY GENERATION AND SIGNATURE METHOD AND SYSTEM[2020/27]
French:GÉNÉRATION EFFICACE DE CLÉ DE COURBE ELLIPTIQUE À SEUIL REPARTI ET PROCÉDÉ ET SYSTÈME DE SIGNATURE[2020/27]
Examination procedure17.06.2020Amendment by applicant (claims and/or description)
02.10.2020Examination requested  [2020/46]
02.10.2020Date on which the examining division has become responsible
23.06.2021Communication of intention to grant the patent
22.10.2021Fee for grant paid
22.10.2021Fee for publishing/printing paid
22.10.2021Receipt of the translation of the claim(s)
Opposition(s)02.09.2022No opposition filed within time limit [2022/45]
Fees paidRenewal fee
28.07.2021Renewal fee patent year 03
Opt-out from the exclusive  Tooltip
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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.
Lapses during opposition  TooltipHU05.07.2019
AL01.12.2021
AT01.12.2021
CY01.12.2021
CZ01.12.2021
DK01.12.2021
EE01.12.2021
FI01.12.2021
HR01.12.2021
LT01.12.2021
LV01.12.2021
MC01.12.2021
MK01.12.2021
NL01.12.2021
PL01.12.2021
RO01.12.2021
RS01.12.2021
SE01.12.2021
SI01.12.2021
SK01.12.2021
SM01.12.2021
BG01.03.2022
NO01.03.2022
GR02.03.2022
IS01.04.2022
PT01.04.2022
IE05.07.2022
LU05.07.2022
ES06.07.2022
BE31.07.2022
CH31.07.2022
FR31.07.2022
LI31.07.2022
[2024/25]
Former [2024/23]AL01.12.2021
AT01.12.2021
CY01.12.2021
CZ01.12.2021
DK01.12.2021
EE01.12.2021
FI01.12.2021
HR01.12.2021
LT01.12.2021
LV01.12.2021
MC01.12.2021
MK01.12.2021
NL01.12.2021
PL01.12.2021
RO01.12.2021
RS01.12.2021
SE01.12.2021
SI01.12.2021
SK01.12.2021
SM01.12.2021
BG01.03.2022
NO01.03.2022
GR02.03.2022
IS01.04.2022
PT01.04.2022
IE05.07.2022
LU05.07.2022
ES06.07.2022
BE31.07.2022
CH31.07.2022
FR31.07.2022
LI31.07.2022
Former [2024/20]AL01.12.2021
AT01.12.2021
CY01.12.2021
CZ01.12.2021
DK01.12.2021
EE01.12.2021
FI01.12.2021
HR01.12.2021
LT01.12.2021
LV01.12.2021
MC01.12.2021
NL01.12.2021
PL01.12.2021
RO01.12.2021
RS01.12.2021
SE01.12.2021
SI01.12.2021
SK01.12.2021
SM01.12.2021
BG01.03.2022
NO01.03.2022
GR02.03.2022
IS01.04.2022
PT01.04.2022
IE05.07.2022
LU05.07.2022
ES06.07.2022
BE31.07.2022
CH31.07.2022
FR31.07.2022
LI31.07.2022
Former [2023/46]AL01.12.2021
AT01.12.2021
CZ01.12.2021
DK01.12.2021
EE01.12.2021
FI01.12.2021
HR01.12.2021
LT01.12.2021
LV01.12.2021
MC01.12.2021
NL01.12.2021
PL01.12.2021
RO01.12.2021
RS01.12.2021
SE01.12.2021
SI01.12.2021
SK01.12.2021
SM01.12.2021
BG01.03.2022
NO01.03.2022
GR02.03.2022
IS01.04.2022
PT01.04.2022
IE05.07.2022
LU05.07.2022
ES06.07.2022
BE31.07.2022
CH31.07.2022
FR31.07.2022
LI31.07.2022
Former [2023/33]AL01.12.2021
AT01.12.2021
CZ01.12.2021
DK01.12.2021
EE01.12.2021
FI01.12.2021
HR01.12.2021
LT01.12.2021
LV01.12.2021
MC01.12.2021
NL01.12.2021
PL01.12.2021
RO01.12.2021
RS01.12.2021
SE01.12.2021
SI01.12.2021
SK01.12.2021
SM01.12.2021
BG01.03.2022
NO01.03.2022
GR02.03.2022
IS01.04.2022
PT01.04.2022
IE05.07.2022
LU05.07.2022
BE31.07.2022
CH31.07.2022
FR31.07.2022
LI31.07.2022
Former [2023/26]AL01.12.2021
AT01.12.2021
CZ01.12.2021
DK01.12.2021
EE01.12.2021
FI01.12.2021
HR01.12.2021
LT01.12.2021
LV01.12.2021
MC01.12.2021
NL01.12.2021
PL01.12.2021
RO01.12.2021
RS01.12.2021
SE01.12.2021
SI01.12.2021
SK01.12.2021
SM01.12.2021
BG01.03.2022
NO01.03.2022
GR02.03.2022
IS01.04.2022
PT01.04.2022
LU05.07.2022
BE31.07.2022
CH31.07.2022
FR31.07.2022
LI31.07.2022
Former [2023/22]AL01.12.2021
AT01.12.2021
CZ01.12.2021
DK01.12.2021
EE01.12.2021
FI01.12.2021
HR01.12.2021
LT01.12.2021
LV01.12.2021
MC01.12.2021
NL01.12.2021
PL01.12.2021
RO01.12.2021
RS01.12.2021
SE01.12.2021
SI01.12.2021
SK01.12.2021
SM01.12.2021
BG01.03.2022
NO01.03.2022
GR02.03.2022
IS01.04.2022
PT01.04.2022
LU05.07.2022
CH31.07.2022
FR31.07.2022
LI31.07.2022
Former [2023/21]AL01.12.2021
AT01.12.2021
CZ01.12.2021
DK01.12.2021
EE01.12.2021
FI01.12.2021
HR01.12.2021
LT01.12.2021
LV01.12.2021
MC01.12.2021
NL01.12.2021
PL01.12.2021
RO01.12.2021
RS01.12.2021
SE01.12.2021
SI01.12.2021
SK01.12.2021
SM01.12.2021
BG01.03.2022
NO01.03.2022
GR02.03.2022
IS01.04.2022
PT01.04.2022
LU05.07.2022
CH31.07.2022
LI31.07.2022
Former [2023/11]AL01.12.2021
AT01.12.2021
CZ01.12.2021
DK01.12.2021
EE01.12.2021
FI01.12.2021
HR01.12.2021
LT01.12.2021
LV01.12.2021
MC01.12.2021
NL01.12.2021
PL01.12.2021
RO01.12.2021
RS01.12.2021
SE01.12.2021
SI01.12.2021
SK01.12.2021
SM01.12.2021
BG01.03.2022
NO01.03.2022
GR02.03.2022
IS01.04.2022
PT01.04.2022
Former [2023/01]AL01.12.2021
AT01.12.2021
CZ01.12.2021
DK01.12.2021
EE01.12.2021
FI01.12.2021
HR01.12.2021
LT01.12.2021
LV01.12.2021
NL01.12.2021
PL01.12.2021
RO01.12.2021
RS01.12.2021
SE01.12.2021
SI01.12.2021
SK01.12.2021
SM01.12.2021
BG01.03.2022
NO01.03.2022
GR02.03.2022
IS01.04.2022
PT01.04.2022
Former [2022/49]AL01.12.2021
AT01.12.2021
CZ01.12.2021
DK01.12.2021
EE01.12.2021
FI01.12.2021
HR01.12.2021
LT01.12.2021
LV01.12.2021
NL01.12.2021
PL01.12.2021
RO01.12.2021
RS01.12.2021
SE01.12.2021
SK01.12.2021
SM01.12.2021
BG01.03.2022
NO01.03.2022
GR02.03.2022
IS01.04.2022
PT01.04.2022
Former [2022/46]AT01.12.2021
CZ01.12.2021
DK01.12.2021
EE01.12.2021
FI01.12.2021
HR01.12.2021
LT01.12.2021
LV01.12.2021
NL01.12.2021
PL01.12.2021
RO01.12.2021
RS01.12.2021
SE01.12.2021
SK01.12.2021
SM01.12.2021
BG01.03.2022
NO01.03.2022
GR02.03.2022
IS01.04.2022
PT01.04.2022
Former [2022/42]AT01.12.2021
CZ01.12.2021
EE01.12.2021
FI01.12.2021
HR01.12.2021
LT01.12.2021
LV01.12.2021
NL01.12.2021
PL01.12.2021
RO01.12.2021
RS01.12.2021
SE01.12.2021
SK01.12.2021
SM01.12.2021
BG01.03.2022
NO01.03.2022
GR02.03.2022
IS01.04.2022
PT01.04.2022
Former [2022/35]AT01.12.2021
CZ01.12.2021
EE01.12.2021
FI01.12.2021
HR01.12.2021
LT01.12.2021
LV01.12.2021
NL01.12.2021
PL01.12.2021
RO01.12.2021
RS01.12.2021
SE01.12.2021
SK01.12.2021
SM01.12.2021
BG01.03.2022
NO01.03.2022
GR02.03.2022
PT01.04.2022
Former [2022/34]AT01.12.2021
EE01.12.2021
FI01.12.2021
HR01.12.2021
LT01.12.2021
LV01.12.2021
NL01.12.2021
PL01.12.2021
RO01.12.2021
RS01.12.2021
SE01.12.2021
SM01.12.2021
BG01.03.2022
NO01.03.2022
GR02.03.2022
PT01.04.2022
Former [2022/33]AT01.12.2021
FI01.12.2021
HR01.12.2021
LT01.12.2021
LV01.12.2021
NL01.12.2021
PL01.12.2021
RS01.12.2021
SE01.12.2021
SM01.12.2021
BG01.03.2022
NO01.03.2022
GR02.03.2022
Former [2022/30]AT01.12.2021
FI01.12.2021
HR01.12.2021
LT01.12.2021
LV01.12.2021
NL01.12.2021
PL01.12.2021
RS01.12.2021
SE01.12.2021
BG01.03.2022
NO01.03.2022
GR02.03.2022
Former [2022/25]AT01.12.2021
FI01.12.2021
HR01.12.2021
LT01.12.2021
LV01.12.2021
PL01.12.2021
RS01.12.2021
SE01.12.2021
BG01.03.2022
NO01.03.2022
GR02.03.2022
Former [2022/24]AT01.12.2021
FI01.12.2021
HR01.12.2021
LT01.12.2021
LV01.12.2021
PL01.12.2021
RS01.12.2021
SE01.12.2021
BG01.03.2022
GR02.03.2022
Former [2022/23]AT01.12.2021
FI01.12.2021
HR01.12.2021
LT01.12.2021
LV01.12.2021
PL01.12.2021
RS01.12.2021
BG01.03.2022
Former [2022/22]AT01.12.2021
FI01.12.2021
LT01.12.2021
RS01.12.2021
BG01.03.2022
Former [2022/21]AT01.12.2021
RS01.12.2021
BG01.03.2022
Former [2022/19]BG01.03.2022
Documents cited:Search[A]WO2015160839  (HRL LAB LLC [US], et al) [A] 1-5 * abstract * * paragraphs [0051] - [0104] *;
 [A]CN106850198  (UNIV WUHAN TECH) [A] 1-5 * abstract * * "The content of the invention" *
 [X]  - Steven Goldfeder ET AL, "Securing Bitcoin wallets via a new DSA/ECDSA threshold signature scheme", (20150308), URL: https://www.cs.princeton.edu/~stevenag/threshold_sigs.pdf, (20161111), XP055318844 [X] 1-5 * abstract * * Chapter 3: "A new Threshold DSA/ECDSA Signature Scheme"; page 4, column r - page 10, column l *
 [A]  - Yang-Yu Liu ET AL, "Threshold secret authentication based on ellipitic curve", Computer Engineering and Design, Vol. 26, No. 10, doi:10.16208/j.issn1000-7024.2005.10.094, (20051001), pages 2858 - 2859, URL: http://en.cnki.com.cn/Article_en/CJFDTotal-SJSJ200510093.htm, (20191028), XP055636168 [A] 1-5 * abstract * * Chapter 3: "Threshold identity authentication scheme based on elliptic curve" * * Chapter 4: "Analysis and discussion" *

DOI:   http://dx.doi.org/10.16208/j.issn1000-7024.2005.10.094
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