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
Register Forum

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

Release notes
European Patent Register Assistant
European Patent Register Resource Book
European Patent Register – pocket guide
FAQ - European Patent Register
FAQ - Register Alert
Federated Register (Flyer)
Global Dossier (Flyer)
Register events
Deep link coverage
Federated Register content
The Patent Information Tour
Fair use charter

Extract from the Register of European Patents

EP About this file: EP3767873

EP3767873 - DELEGATED SIGNATURES FOR SMART DEVICES [Right-click to bookmark this link]
StatusNo opposition filed within time limit
Status updated on  15.03.2024
Database last updated on 24.08.2024
FormerThe patent has been granted
Status updated on  07.04.2023
FormerGrant of patent is intended
Status updated on  13.12.2022
FormerRequest for examination was made
Status updated on  23.07.2021
FormerThe application has been published
Status updated on  18.12.2020
Most recent event   Tooltip12.07.2024Lapse of the patent in a contracting state
New state(s): IE		published on 14.08.2024  [2024/33]
Applicant(s)For all designated states
Guardtime SA
Avenue d'Ouchy 4
1006 Lausanne / CH
[2021/03]
Inventor(s)01 / FIRSOV, Denis
Trummi 6-28
12616 Tallinn / EE
02 / TRUU, Ahto
Aardla 140-36
50415 Tartu / EE
 [2021/03]
Representative(s)Grünecker Patent- und Rechtsanwälte PartG mbB
Leopoldstraße 4
80802 München / DE
[2021/03]
Application number, filing date20186546.617.07.2020
[2021/03]
Priority number, dateUS201962875371P17.07.2019         Original published format: US 201962875371 P
[2021/03]
Filing languageEN
Procedural languageEN
PublicationType: A1 Application with search report 
No.:EP3767873
Date:20.01.2021
Language:EN
[2021/03]
Type: B1 Patent specification 
No.:EP3767873
Date:10.05.2023
Language:EN
[2023/19]
Search report(s)(Supplementary) European search report - dispatched on:EP10.11.2020
ClassificationIPC:H04L9/08, H04L9/14, H04L9/32
[2021/03]
CPC:
H04L9/088 (EP); H04L9/3247 (EP,US); H04L9/0825 (EP);
H04L9/085 (US); H04L9/14 (EP,US); H04L9/3073 (US);
H04L9/3226 (EP); H04L9/3242 (US); H04L9/3297 (EP);
H04L2209/76 (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 [2021/34]
Former [2021/03]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:DELEGIERTE SIGNATUREN FÜR SMART VORRICHTUNGEN[2021/03]
English:DELEGATED SIGNATURES FOR SMART DEVICES[2021/03]
French:SIGNATURES DÉLÉGUÉES POUR DISPOSITIFS INTELLIGENTS[2021/03]
Examination procedure20.07.2021Amendment by applicant (claims and/or description)
20.07.2021Examination requested  [2021/34]
20.07.2021Date on which the examining division has become responsible
14.12.2022Communication of intention to grant the patent
30.03.2023Fee for grant paid
30.03.2023Fee for publishing/printing paid
30.03.2023Receipt of the translation of the claim(s)
Opposition(s)13.02.2024No opposition filed within time limit [2024/16]
Fees paidRenewal fee
28.07.2022Renewal fee patent year 03
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.
Lapses during opposition  TooltipAT10.05.2023
CZ10.05.2023
DK10.05.2023
ES10.05.2023
FI10.05.2023
HR10.05.2023
IT10.05.2023
LT10.05.2023
LV10.05.2023
MC10.05.2023
NL10.05.2023
PL10.05.2023
RO10.05.2023
RS10.05.2023
SE10.05.2023
SI10.05.2023
SK10.05.2023
SM10.05.2023
IE17.07.2023
LU17.07.2023
BE31.07.2023
NO10.08.2023
GR11.08.2023
IS10.09.2023
PT11.09.2023
[2024/33]
Former [2024/26]AT10.05.2023
CZ10.05.2023
DK10.05.2023
ES10.05.2023
FI10.05.2023
HR10.05.2023
IT10.05.2023
LT10.05.2023
LV10.05.2023
MC10.05.2023
NL10.05.2023
PL10.05.2023
RO10.05.2023
RS10.05.2023
SE10.05.2023
SI10.05.2023
SK10.05.2023
SM10.05.2023
LU17.07.2023
BE31.07.2023
NO10.08.2023
GR11.08.2023
IS10.09.2023
PT11.09.2023
Former [2024/18]AT10.05.2023
CZ10.05.2023
DK10.05.2023
ES10.05.2023
FI10.05.2023
HR10.05.2023
LT10.05.2023
LV10.05.2023
MC10.05.2023
NL10.05.2023
PL10.05.2023
RO10.05.2023
RS10.05.2023
SE10.05.2023
SK10.05.2023
SM10.05.2023
LU17.07.2023
NO10.08.2023
GR11.08.2023
IS10.09.2023
PT11.09.2023
Former [2024/14]AT10.05.2023
CZ10.05.2023
DK10.05.2023
ES10.05.2023
FI10.05.2023
HR10.05.2023
LT10.05.2023
LV10.05.2023
MC10.05.2023
NL10.05.2023
PL10.05.2023
RO10.05.2023
RS10.05.2023
SE10.05.2023
SK10.05.2023
SM10.05.2023
NO10.08.2023
GR11.08.2023
IS10.09.2023
PT11.09.2023
Former [2024/10]AT10.05.2023
CZ10.05.2023
DK10.05.2023
ES10.05.2023
FI10.05.2023
HR10.05.2023
LT10.05.2023
LV10.05.2023
NL10.05.2023
PL10.05.2023
RO10.05.2023
RS10.05.2023
SE10.05.2023
SK10.05.2023
SM10.05.2023
NO10.08.2023
GR11.08.2023
IS10.09.2023
PT11.09.2023
Former [2024/08]AT10.05.2023
ES10.05.2023
FI10.05.2023
HR10.05.2023
LT10.05.2023
LV10.05.2023
NL10.05.2023
PL10.05.2023
RS10.05.2023
SE10.05.2023
SK10.05.2023
SM10.05.2023
NO10.08.2023
GR11.08.2023
IS10.09.2023
PT11.09.2023
Former [2024/03]AT10.05.2023
ES10.05.2023
FI10.05.2023
HR10.05.2023
LT10.05.2023
LV10.05.2023
NL10.05.2023
PL10.05.2023
RS10.05.2023
SE10.05.2023
NO10.08.2023
GR11.08.2023
IS10.09.2023
PT11.09.2023
Former [2024/01]AT10.05.2023
ES10.05.2023
HR10.05.2023
LT10.05.2023
LV10.05.2023
NL10.05.2023
PL10.05.2023
RS10.05.2023
SE10.05.2023
NO10.08.2023
GR11.08.2023
IS10.09.2023
PT11.09.2023
Former [2023/51]AT10.05.2023
ES10.05.2023
HR10.05.2023
NL10.05.2023
PL10.05.2023
RS10.05.2023
SE10.05.2023
NO10.08.2023
GR11.08.2023
IS10.09.2023
PT11.09.2023
Former [2023/50]AT10.05.2023
ES10.05.2023
NL10.05.2023
PL10.05.2023
SE10.05.2023
NO10.08.2023
GR11.08.2023
IS10.09.2023
PT11.09.2023
Former [2023/48]AT10.05.2023
ES10.05.2023
NL10.05.2023
SE10.05.2023
NO10.08.2023
PT11.09.2023
Former [2023/46]ES10.05.2023
PT11.09.2023
Documents cited:Search[A]US2006239208  (ROBERTS DAVID A [US], et al) [A] 1-5 * paragraph [0011] *;
 [XI]  - XUHUA DING ET AL, "Experimenting with server-aided signatures", PROCEEDINGS OF THE SYMPOSIUM ON NETWORK AND DISTRIBUTED SYSTEMSECURITY, XX, XX, (20020208), pages 1 - 15, XP002265339 [X] 1 * abstract * * section 2 * * section 5.2 * [I] 2-5
 [XI]  - XUHUA DING ET AL, "Equipping smart devices with public key signatures", ACM TRANSACTIONS ON INTERNET TECHNOLOGY, ACM, NEW YORK, NY, US, (20070201), vol. 7, no. 1, doi:10.1145/1189740.1189743, ISSN 1533-5399, pages 3 - es, XP058135297 [X] 1 * abstract * * section 5.2 * * figure 1 * [I] 2-5

DOI:   http://dx.doi.org/10.1145/1189740.1189743
 [XI]  - BICAKCI K ET AL, "Improved server assisted signatures", COMPUTER NETWORKS, ELSEVIER, AMSTERDAM, NL, vol. 47, no. 3, ISSN 1389-1286, (20050221), pages 351 - 366, (20050221), XP027706957 [X] 1 * section 2.4 * * figure 1 * [I] 2-5
 [A]  - RUIZ-MARTINEZ A ET AL, "A mobile network operator-independent mobile signature service", JOURNAL OF NETWORK AND COMPUTER APPLICATIONS, ACADEMIC PRESS, NEW YORK, NY, US, vol. 34, no. 1, doi:10.1016/J.JNCA.2010.07.003, ISSN 1084-8045, (20110101), pages 294 - 311, (20100714), XP027492590 [A] 1-5 * the whole document *

DOI:   http://dx.doi.org/10.1016/j.jnca.2010.07.003
 [A]  - AHTO BULDAS ET AL, "A New Approach to Constructing Digital Signature Schemes (Extended Paper)", vol. 20190606:114338, (20190606), pages 1 - 17, IACR, INTERNATIONAL ASSOCIATION FOR CRYPTOLOGIC RESEARCH, URL: http://eprint.iacr.org/2019/673.pdf, (20190606), XP061032861 [A] 1-5 * the whole document *
by applicantUS8719576
    - BULDAS et al., Document verification with distributed calendar infrastructure
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.