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Extract from the Register of European Patents

EP About this file: EP3605768

EP3605768 - SAFE PROCESSING METHOD FOR ACTIVE VOLTAGE REDUCTION OF GROUND FAULT PHASE OF NON-EFFECTIVE GROUNDING SYSTEM [Right-click to bookmark this link]
StatusNo opposition filed within time limit
Status updated on  17.11.2023
Database last updated on 21.05.2024
FormerThe patent has been granted
Status updated on  09.12.2022
FormerGrant of patent is intended
Status updated on  16.08.2022
FormerRequest for examination was made
Status updated on  03.01.2020
FormerThe international publication has been made
Status updated on  12.01.2019
Most recent event   Tooltip10.05.2024Lapse of the patent in a contracting state
New state(s): BE, CH, FR, GB		published on 12.06.2024 [2024/24]
Applicant(s)For all designated states
Changsha University of Science and Technology
No.960 2nd Section
South Wanjiali Road
Yuhua District
Changsha, Hunan 410004 / CN
[2020/06]
Inventor(s)01 / ZENG, Xiangjun
No.960 2nd Section
South Wanjiali Road
Yuhua District
Changsha Hunan 410004 / CN
 [2020/06]
Representative(s)Petraz, Gilberto Luigi, et al
GLP S.r.l.
Viale Europa Unita, 171
33100 Udine / IT
[2020/06]
Application number, filing date18828476.404.07.2018
[2020/06]
WO2018CN94402
Priority number, dateCN20171055040006.07.2017         Original published format: CN201710550400
[2020/06]
Filing languageZH
Procedural languageEN
PublicationType: A1 Application with search report
No.:WO2019007348
Date:10.01.2019
Language:ZH
[2019/02]
Type: A1 Application with search report 
No.:EP3605768
Date:05.02.2020
Language:EN
[2020/06]
Type: B1 Patent specification 
No.:EP3605768
Date:11.01.2023
Language:EN
[2023/02]
Search report(s)International search report - published on:CN10.01.2019
(Supplementary) European search report - dispatched on:EP27.11.2020
ClassificationIPC:H02H9/02, H02H9/08
[2021/01]
CPC:
H02H9/08 (EP); H02H9/02 (CN,RU); H02H9/002 (US)
Former IPC [2020/06]H02H9/02
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 [2020/06]
Extension statesBANot yet paid
MENot yet paid
Validation statesKHNot yet paid
MANot yet paid
MDNot yet paid
TNNot yet paid
TitleGerman:VERFAHREN ZUR SICHEREN VERARBEITUNG ZUR AKTIVEN SPANNUNGSVERRINGERUNG DER ERDSCHLUSSPHASE EINES INEFFEKTIVEN ERDUNGSSYSTEMS[2020/06]
English:SAFE PROCESSING METHOD FOR ACTIVE VOLTAGE REDUCTION OF GROUND FAULT PHASE OF NON-EFFECTIVE GROUNDING SYSTEM[2020/06]
French:PROCÉDÉ DE TRAITEMENT SANS DANGER POUR UNE RÉDUCTION ACTIVE DE TENSION DE PHASE DE DÉFAUT À LA TERRE DE SYSTÈME DE MISE À LA TERRE NON EFFICACE[2020/06]
Entry into regional phase21.10.2019Translation filed 
21.10.2019National basic fee paid 
21.10.2019Search fee paid 
21.10.2019Designation fee(s) paid 
21.10.2019Examination fee paid 
Examination procedure21.10.2019Examination requested  [2020/06]
17.05.2021Amendment by applicant (claims and/or description)
17.08.2022Communication of intention to grant the patent
30.11.2022Fee for grant paid
30.11.2022Fee for publishing/printing paid
30.11.2022Receipt of the translation of the claim(s)
Opposition(s)12.10.2023No opposition filed within time limit [2023/51]
Fees paidRenewal fee
20.07.2020Renewal fee patent year 03
29.06.2021Renewal fee patent year 04
06.05.2022Renewal fee patent year 05
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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  TooltipAT11.01.2023
CZ11.01.2023
DK11.01.2023
EE11.01.2023
ES11.01.2023
FI11.01.2023
HR11.01.2023
LT11.01.2023
LV11.01.2023
MC11.01.2023
NL11.01.2023
PL11.01.2023
RO11.01.2023
RS11.01.2023
SE11.01.2023
SI11.01.2023
SK11.01.2023
SM11.01.2023
NO11.04.2023
GR12.04.2023
IS11.05.2023
PT11.05.2023
GB04.07.2023
LU04.07.2023
BE31.07.2023
CH31.07.2023
FR31.07.2023
[2024/24]
Former [2024/18]AT11.01.2023
CZ11.01.2023
DK11.01.2023
EE11.01.2023
ES11.01.2023
FI11.01.2023
HR11.01.2023
LT11.01.2023
LV11.01.2023
MC11.01.2023
NL11.01.2023
PL11.01.2023
RO11.01.2023
RS11.01.2023
SE11.01.2023
SI11.01.2023
SK11.01.2023
SM11.01.2023
NO11.04.2023
GR12.04.2023
IS11.05.2023
PT11.05.2023
LU04.07.2023
Former [2024/14]AT11.01.2023
CZ11.01.2023
DK11.01.2023
EE11.01.2023
ES11.01.2023
FI11.01.2023
HR11.01.2023
LT11.01.2023
LV11.01.2023
MC11.01.2023
NL11.01.2023
PL11.01.2023
RO11.01.2023
RS11.01.2023
SE11.01.2023
SI11.01.2023
SK11.01.2023
SM11.01.2023
NO11.04.2023
GR12.04.2023
IS11.05.2023
PT11.05.2023
Former [2024/11]AT11.01.2023
CZ11.01.2023
DK11.01.2023
EE11.01.2023
ES11.01.2023
FI11.01.2023
HR11.01.2023
LT11.01.2023
LV11.01.2023
NL11.01.2023
PL11.01.2023
RO11.01.2023
RS11.01.2023
SE11.01.2023
SI11.01.2023
SK11.01.2023
SM11.01.2023
NO11.04.2023
GR12.04.2023
IS11.05.2023
PT11.05.2023
Former [2023/50]AT11.01.2023
CZ11.01.2023
DK11.01.2023
EE11.01.2023
ES11.01.2023
FI11.01.2023
HR11.01.2023
LT11.01.2023
LV11.01.2023
NL11.01.2023
PL11.01.2023
RO11.01.2023
RS11.01.2023
SE11.01.2023
SK11.01.2023
SM11.01.2023
NO11.04.2023
GR12.04.2023
IS11.05.2023
PT11.05.2023
Former [2023/49]AT11.01.2023
CZ11.01.2023
DK11.01.2023
EE11.01.2023
ES11.01.2023
FI11.01.2023
HR11.01.2023
LT11.01.2023
LV11.01.2023
NL11.01.2023
PL11.01.2023
RO11.01.2023
RS11.01.2023
SE11.01.2023
SM11.01.2023
NO11.04.2023
GR12.04.2023
IS11.05.2023
PT11.05.2023
Former [2023/48]AT11.01.2023
DK11.01.2023
EE11.01.2023
ES11.01.2023
FI11.01.2023
HR11.01.2023
LT11.01.2023
LV11.01.2023
NL11.01.2023
PL11.01.2023
RS11.01.2023
SE11.01.2023
SM11.01.2023
NO11.04.2023
GR12.04.2023
IS11.05.2023
PT11.05.2023
Former [2023/46]AT11.01.2023
DK11.01.2023
ES11.01.2023
FI11.01.2023
HR11.01.2023
LT11.01.2023
LV11.01.2023
NL11.01.2023
PL11.01.2023
RS11.01.2023
SE11.01.2023
SM11.01.2023
NO11.04.2023
GR12.04.2023
IS11.05.2023
PT11.05.2023
Former [2023/39]AT11.01.2023
ES11.01.2023
FI11.01.2023
HR11.01.2023
LT11.01.2023
LV11.01.2023
NL11.01.2023
PL11.01.2023
RS11.01.2023
SE11.01.2023
NO11.04.2023
GR12.04.2023
IS11.05.2023
PT11.05.2023
Former [2023/38]AT11.01.2023
ES11.01.2023
FI11.01.2023
HR11.01.2023
LT11.01.2023
LV11.01.2023
NL11.01.2023
PL11.01.2023
RS11.01.2023
SE11.01.2023
NO11.04.2023
GR12.04.2023
PT11.05.2023
Former [2023/37]AT11.01.2023
ES11.01.2023
FI11.01.2023
HR11.01.2023
LT11.01.2023
LV11.01.2023
NL11.01.2023
RS11.01.2023
SE11.01.2023
NO11.04.2023
GR12.04.2023
PT11.05.2023
Former [2023/36]AT11.01.2023
ES11.01.2023
FI11.01.2023
HR11.01.2023
LT11.01.2023
LV11.01.2023
NL11.01.2023
RS11.01.2023
SE11.01.2023
NO11.04.2023
PT11.05.2023
Former [2023/35]AT11.01.2023
ES11.01.2023
HR11.01.2023
LT11.01.2023
NL11.01.2023
RS11.01.2023
NO11.04.2023
PT11.05.2023
Former [2023/34]ES11.01.2023
LT11.01.2023
NL11.01.2023
RS11.01.2023
PT11.05.2023
Former [2023/33]ES11.01.2023
LT11.01.2023
NL11.01.2023
Former [2023/31]NL11.01.2023
Documents cited:Search[A]US1784682  (ROBERT SCHIMPF) [A] 1 * page 1, line 57 - page 2; figures 1,2 *;
 [A]CN2306605Y  (ZHANG XUHUI [CN]) [A] 1* the whole document *;
 [A]CN202353205U  (LIUXIN HUANG) [A] 1-10 * the whole document *;
 [A]CN104901299  (ANHUI MANITE HEKAI ELECTRICAL APPLIANCES CO LTD) [A] 1-10 * paragraphs [0011] - [0015]; figure 1 *
International search[A]CN1645705  (CHANGSHA SCIENCE AND ENGINEERI [CN]) [A] 1-10 * entire document *;
 [A]CN1912642  (XU WENYUAN [CN]) [A] 1-10 * entire document *;
 [A]WO2012013165  (ZAPADOCESKA UNIVERZITA V PLZNI [CZ], et al) [A] 1-10* entire document *;
 [A]CN104662761  (SWEDISH NEUTRAL AB) [A] 1-10 * description, paragraphs 45-58, and figures 1-4a *;
 [PX]CN107147096  (UNIV CHANGSHA SCIENCE & TECH) [PX] 1-10 * description, paragraphs 33-51, claims 1-10, and figures 1-6 *
by applicantCN20111006701
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.