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Extract from the Register of European Patents

EP About this file: EP2520040

EP2520040 - METHOD AND APPARATUS FOR DETECTING COMMUNICATION CHANNEL DELAY ASYMMETRY [Right-click to bookmark this link]
StatusNo opposition filed within time limit
Status updated on  20.09.2019
Database last updated on 24.08.2024
FormerThe patent has been granted
Status updated on  12.10.2018
FormerGrant of patent is intended
Status updated on  28.06.2018
Most recent event   Tooltip03.07.2020Lapse of the patent in a contracting state
New state(s): CY, MK		published on 05.08.2020  [2020/32]
Applicant(s)For all designated states
ABB Schweiz AG
Brown Boveri Strasse 6
5400 Baden / CH
[2019/35]
Former [2012/45]For all designated states
ABB Research Ltd.
Affolternstrasse 44
8050 Zürich / CH
Inventor(s)01 / SU, Bin
Baiziwandongli 314
Chaoyang District
Beijing 100214 / CN
02 / LI, Youyi
6-1-403 Laizhen Jiayuan
Qinghe Xiaoying
Haidian District
Beijing 100192 / CN
03 / EINARSSON, Torbjorn
Natverksgatan 3
Vasteras
S-721 59 Vastmanland / SE
 [2012/45]
Representative(s)Zimmermann & Partner Patentanwälte mbB
Postfach 330 920
80069 München / DE
[2018/46]
Former [2012/45]Zimmermann & Partner
Josephspitalstr. 15
80331 München / DE
Application number, filing date09852745.031.12.2009
[2018/46]
WO2009CN76347
Filing languageEN
Procedural languageEN
PublicationType: A1 Application with search report
No.:WO2011079460
Date:07.07.2011
Language:EN
[2011/27]
Type: A1 Application with search report 
No.:EP2520040
Date:07.11.2012
Language:EN
The application published by WIPO in one of the EPO official languages on 07.07.2011 takes the place of the publication of the European patent application.
[2012/45]
Type: B1 Patent specification 
No.:EP2520040
Date:14.11.2018
Language:EN
[2018/46]
Search report(s)International search report - published on:CN07.07.2011
(Supplementary) European search report - dispatched on:EP21.11.2017
ClassificationIPC:H04J3/06, H04J3/14, H02H1/00, H02H3/30, H04L7/00
[2017/51]
CPC:
H02H1/0061 (EP,US); H04J3/0682 (EP,US); H02H3/30 (EP,US);
H04J3/065 (EP,US); H04J3/0658 (US)
Former IPC [2012/45]H04L7/00
Designated contracting statesAT,   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,   SE,   SI,   SK,   SM,   TR [2012/45]
Extension statesALNot yet paid
BANot yet paid
RSNot yet paid
TitleGerman:VERFAHREN UND VORRICHTUNG ZUR ERKENNUNG VON VERZÖGERUNGSASYMMETRIEN BEI KOMMUNIKATIONSKANÄLEN[2012/45]
English:METHOD AND APPARATUS FOR DETECTING COMMUNICATION CHANNEL DELAY ASYMMETRY[2012/45]
French:PROCÉDÉ ET APPAREIL POUR DÉTECTER UNE ASYMÉTRIE DU RETARD D'UN CANAL DE COMMUNICATION[2012/45]
Entry into regional phase28.02.2012National basic fee paid 
28.02.2012Search fee paid 
28.02.2012Designation fee(s) paid 
28.02.2012Examination fee paid 
Examination procedure28.02.2012Examination requested  [2012/45]
23.05.2018Amendment by applicant (claims and/or description)
29.06.2018Communication of intention to grant the patent
05.10.2018Fee for grant paid
05.10.2018Fee for publishing/printing paid
05.10.2018Receipt of the translation of the claim(s)
Divisional application(s)The date of the Examining Division's first communication in respect of the earliest application for which a communication has been issued is  29.06.2018
Opposition(s)15.08.2019No opposition filed within time limit [2019/43]
Fees paidRenewal fee
28.02.2012Renewal fee patent year 03
19.12.2012Renewal fee patent year 04
27.12.2013Renewal fee patent year 05
22.12.2014Renewal fee patent year 06
22.12.2015Renewal fee patent year 07
23.12.2016Renewal fee patent year 08
21.12.2017Renewal fee patent year 09
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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  TooltipHU31.12.2009
AT14.11.2018
CY14.11.2018
CZ14.11.2018
DK14.11.2018
EE14.11.2018
ES14.11.2018
FI14.11.2018
HR14.11.2018
IT14.11.2018
LT14.11.2018
LV14.11.2018
MC14.11.2018
MK14.11.2018
NL14.11.2018
PL14.11.2018
RO14.11.2018
SE14.11.2018
SI14.11.2018
SK14.11.2018
SM14.11.2018
TR14.11.2018
BE31.12.2018
CH31.12.2018
IE31.12.2018
LI31.12.2018
LU31.12.2018
MT31.12.2018
BG14.02.2019
NO14.02.2019
GR15.02.2019
IS14.03.2019
PT14.03.2019
[2020/31]
Former [2020/30]HU31.12.2009
AT14.11.2018
CZ14.11.2018
DK14.11.2018
EE14.11.2018
ES14.11.2018
FI14.11.2018
HR14.11.2018
IT14.11.2018
LT14.11.2018
LV14.11.2018
MC14.11.2018
NL14.11.2018
PL14.11.2018
RO14.11.2018
SE14.11.2018
SI14.11.2018
SK14.11.2018
SM14.11.2018
TR14.11.2018
BE31.12.2018
CH31.12.2018
IE31.12.2018
LI31.12.2018
LU31.12.2018
MT31.12.2018
BG14.02.2019
NO14.02.2019
GR15.02.2019
IS14.03.2019
PT14.03.2019
Former [2020/17]AT14.11.2018
CZ14.11.2018
DK14.11.2018
EE14.11.2018
ES14.11.2018
FI14.11.2018
HR14.11.2018
IT14.11.2018
LT14.11.2018
LV14.11.2018
MC14.11.2018
NL14.11.2018
PL14.11.2018
RO14.11.2018
SE14.11.2018
SI14.11.2018
SK14.11.2018
SM14.11.2018
TR14.11.2018
BE31.12.2018
CH31.12.2018
IE31.12.2018
LI31.12.2018
LU31.12.2018
MT31.12.2018
BG14.02.2019
NO14.02.2019
GR15.02.2019
IS14.03.2019
PT14.03.2019
Former [2020/08]AT14.11.2018
CZ14.11.2018
DK14.11.2018
EE14.11.2018
ES14.11.2018
FI14.11.2018
HR14.11.2018
IT14.11.2018
LT14.11.2018
LV14.11.2018
MC14.11.2018
NL14.11.2018
PL14.11.2018
RO14.11.2018
SE14.11.2018
SI14.11.2018
SK14.11.2018
SM14.11.2018
BE31.12.2018
CH31.12.2018
IE31.12.2018
LI31.12.2018
LU31.12.2018
MT31.12.2018
BG14.02.2019
NO14.02.2019
GR15.02.2019
IS14.03.2019
PT14.03.2019
Former [2020/04]AT14.11.2018
CZ14.11.2018
DK14.11.2018
EE14.11.2018
ES14.11.2018
FI14.11.2018
HR14.11.2018
IT14.11.2018
LT14.11.2018
LV14.11.2018
MC14.11.2018
NL14.11.2018
PL14.11.2018
RO14.11.2018
SE14.11.2018
SI14.11.2018
SK14.11.2018
SM14.11.2018
BE31.12.2018
CH31.12.2018
IE31.12.2018
LI31.12.2018
LU31.12.2018
BG14.02.2019
NO14.02.2019
GR15.02.2019
IS14.03.2019
PT14.03.2019
Former [2019/50]AT14.11.2018
CZ14.11.2018
DK14.11.2018
EE14.11.2018
ES14.11.2018
FI14.11.2018
HR14.11.2018
IT14.11.2018
LT14.11.2018
LV14.11.2018
MC14.11.2018
NL14.11.2018
PL14.11.2018
RO14.11.2018
SE14.11.2018
SI14.11.2018
SK14.11.2018
SM14.11.2018
BE31.12.2018
IE31.12.2018
LU31.12.2018
BG14.02.2019
NO14.02.2019
GR15.02.2019
IS14.03.2019
PT14.03.2019
Former [2019/48]AT14.11.2018
CZ14.11.2018
DK14.11.2018
EE14.11.2018
ES14.11.2018
FI14.11.2018
HR14.11.2018
IT14.11.2018
LT14.11.2018
LV14.11.2018
MC14.11.2018
NL14.11.2018
PL14.11.2018
RO14.11.2018
SE14.11.2018
SK14.11.2018
SM14.11.2018
IE31.12.2018
LU31.12.2018
BG14.02.2019
NO14.02.2019
GR15.02.2019
IS14.03.2019
PT14.03.2019
Former [2019/40]AT14.11.2018
CZ14.11.2018
DK14.11.2018
EE14.11.2018
ES14.11.2018
FI14.11.2018
HR14.11.2018
IT14.11.2018
LT14.11.2018
LV14.11.2018
MC14.11.2018
NL14.11.2018
PL14.11.2018
RO14.11.2018
SE14.11.2018
SK14.11.2018
SM14.11.2018
LU31.12.2018
BG14.02.2019
NO14.02.2019
GR15.02.2019
IS14.03.2019
PT14.03.2019
Former [2019/39]AT14.11.2018
CZ14.11.2018
DK14.11.2018
EE14.11.2018
ES14.11.2018
FI14.11.2018
HR14.11.2018
IT14.11.2018
LT14.11.2018
LV14.11.2018
NL14.11.2018
PL14.11.2018
RO14.11.2018
SE14.11.2018
SK14.11.2018
SM14.11.2018
LU31.12.2018
BG14.02.2019
NO14.02.2019
GR15.02.2019
IS14.03.2019
PT14.03.2019
Former [2019/37]AT14.11.2018
CZ14.11.2018
DK14.11.2018
EE14.11.2018
ES14.11.2018
FI14.11.2018
HR14.11.2018
IT14.11.2018
LT14.11.2018
LV14.11.2018
NL14.11.2018
PL14.11.2018
RO14.11.2018
SE14.11.2018
SM14.11.2018
BG14.02.2019
NO14.02.2019
GR15.02.2019
IS14.03.2019
PT14.03.2019
Former [2019/35]AT14.11.2018
CZ14.11.2018
DK14.11.2018
ES14.11.2018
FI14.11.2018
HR14.11.2018
IT14.11.2018
LT14.11.2018
LV14.11.2018
NL14.11.2018
PL14.11.2018
SE14.11.2018
BG14.02.2019
NO14.02.2019
GR15.02.2019
IS14.03.2019
PT14.03.2019
Former [2019/34]AT14.11.2018
DK14.11.2018
ES14.11.2018
FI14.11.2018
HR14.11.2018
IT14.11.2018
LT14.11.2018
LV14.11.2018
NL14.11.2018
SE14.11.2018
BG14.02.2019
NO14.02.2019
GR15.02.2019
IS14.03.2019
PT14.03.2019
Former [2019/26]AT14.11.2018
ES14.11.2018
FI14.11.2018
HR14.11.2018
LT14.11.2018
LV14.11.2018
NL14.11.2018
SE14.11.2018
BG14.02.2019
NO14.02.2019
GR15.02.2019
IS14.03.2019
PT14.03.2019
Former [2019/24]AT14.11.2018
ES14.11.2018
FI14.11.2018
HR14.11.2018
LT14.11.2018
LV14.11.2018
NL14.11.2018
SE14.11.2018
BG14.02.2019
NO14.02.2019
GR15.02.2019
IS14.03.2019
Former [2019/23]AT14.11.2018
ES14.11.2018
FI14.11.2018
HR14.11.2018
LT14.11.2018
LV14.11.2018
NL14.11.2018
BG14.02.2019
NO14.02.2019
IS14.03.2019
Former [2019/22]FI14.11.2018
LT14.11.2018
BG14.02.2019
NO14.02.2019
IS14.03.2019
Former [2019/21]FI14.11.2018
LT14.11.2018
NO14.02.2019
IS14.03.2019
Former [2019/20]LT14.11.2018
NO14.02.2019
Documents cited:Search[XA]EP1802014  (AGILENT TECHNOLOGIES INC [US]) [X] 1,9-12 * paragraphs [0003] - [0005] * * paragraphs [0007] - [0022] * * paragraphs [0024] - [0033] * * figures 1, 2A, 2B, 4A * [A] 2-8;
 [XI]  - BRUNELLO G ET AL, "Current differential relaying coping with communications channel asymmetry", 2003 IEEE PES TRANSMISSION AND DISTRIBUTION CONFERENCE. CONFERENCE PROCEEDINGS. DALLAS, TX, SEPT. 7 - 12, 2003; [IEEE/PES TRANSMISSION AND DISTRIBUTION CONFERENCE AND EXPOSITION], NEW YORK, NY : IEEE, US, (20030907), vol. 1, doi:10.1109/TDC.2003.1335242, ISBN 978-0-7803-8110-0, pages 320 - 328, XP010725149 [X] 1-3,11,12 * abstract * * page 320, column r, paragraph 1 - page 322, column l, paragraph 3; figures 1,2,3 * * page 323, column r, paragraph 3 - page 324, column l, paragraph 5; figure 4 * * page 327, column l, paragraph 4 - column r, paragraph 1 * [I] 4-10

DOI:   http://dx.doi.org/10.1109/TDC.2003.1335242
 [A]  - MONINGTON K W ET AL, "Time synchronization using the Internet", FREQUENCY CONTROL SYMPOSIUM, 1997., PROCEEDINGS OF THE 1997 IEEE INTERNATIONAL. ORLANDO, FL, USA 28-30 MAY 1997, NEW YORK, NY, USA,IEEE, US, (19970528), doi:10.1109/FREQ.1997.638573, ISBN 978-0-7803-3728-2, pages 395 - 403, XP010257463 [A] 1-12 * page 395, column r, paragraph 1 - page 402, column l, paragraph 4 *

DOI:   http://dx.doi.org/10.1109/FREQ.1997.638573
International search[X]CN101098219  (AGILENT TECHNOLOGIES INC [US]);
 [A]CN1997027  (AGILENT TECHNOLOGIES INC [US]);
 [A]US2009238211  (DECUSATIS CASIMER [US], et al)
by applicantEP1802014
    - HOULEI GAO; SHIFANG JIANG et al., "Sampling Synchronization methods in digital current differential protection", Automation of electric power systems, (19960900), vol. 20
    - BRUNELLO G. et al., Current differential relaying coping with communications channel asymmetry
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