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Extract from the Register of European Patents

EP About this file: EP4246704

EP4246704 - BATTERY, ELECTRIC DEVICE, METHOD FOR MANUFACTURING BATTERY, AND DEVICE FOR MANUFACTURING BATTERY [Right-click to bookmark this link]
Former [2023/38]BATTERY, ELECTRICAL APPARATUS, AND BATTERY MANUFACTURING METHOD AND DEVICE
[2025/28]
StatusThe patent has been granted
Status updated on  04.07.2025
Database last updated on 18.03.2026
FormerGrant of patent is intended
Status updated on  16.04.2025
FormerRequest for examination was made
Status updated on  18.08.2023
FormerThe international publication has been made
Status updated on  07.07.2023
Formerunknown
Status updated on  17.10.2022
Most recent event   Tooltip06.02.2026Lapse of the patent in a contracting state
New state(s): ES		published on 11.03.2026  [2026/11]
Applicant(s)For all designated states
Contemporary Amperex Technology (Hong Kong) Limited
Level 19, China Building
29 Queen's Road Central
Central, Central And Western District / HK
[2024/40]
Former [2023/38]For all designated states
Contemporary Amperex Technology Co., Limited
2 Xin'gang Road
Zhangwan Town
Jiaocheng District
Ningde City
Fujian PRC 352100 / CN
Inventor(s)01 / TANG, Yu
Fujian PRC 352100 / CN
02 / WANG, Peng
Fujian PRC 352100 / CN
03 / WU, Xiayi
Fujian PRC 352100 / CN
04 / LI, Zhenhua
Fujian PRC 352100 / CN
05 / LI, Xing
Fujian PRC 352100 / CN
 [2023/38]
Representative(s)Ziebig Hengelhaupt Intellectual Property Attorneys Patentanwaltskanzlei PartGmbB
Leipziger Straße 49
10117 Berlin / DE
[2025/32]
Former [2023/38]Ziebig Hengelhaupt Intellectual Property Attorneys Patentanwaltsanwaltskanzlei PartGmbB
Leipziger Straße 49
10117 Berlin / DE
Application number, filing date21936238.129.12.2021
[2023/38]
WO2021CN142273
Filing languageZH
Procedural languageEN
PublicationType: A1 Application with search report
No.:WO2023123006
Date:06.07.2023
Language:ZH
[2023/27]
Type: A1 Application with search report 
No.:EP4246704
Date:20.09.2023
Language:EN
[2023/38]
Type: B1 Patent specification 
No.:EP4246704
Date:06.08.2025
Language:EN
[2025/32]
Search report(s)International search report - published on:CN06.07.2023
(Supplementary) European search report - dispatched on:EP25.07.2024
ClassificationIPC:H01M50/572, H01M10/04, H01M10/613, H01M10/647, H01M50/103, H01M50/147, H01M50/209, H01M50/213, H01M50/224, H01M50/264, H01M50/271, H01M50/289
[2024/35]
CPC:
H01M50/213 (EP,KR); H01M50/264 (EP,KR,US); H01M10/0431 (EP,US);
H01M10/613 (EP); H01M10/647 (EP); H01M50/103 (EP);
H01M50/147 (EP,US); H01M50/209 (EP,US); H01M50/224 (EP);
H01M50/271 (EP,US); H01M50/289 (EP); H01M2220/20 (EP,KR,US);
Y02E60/10 (EP,KR); Y02P70/50 (EP) (-)
Former IPC [2023/38]H01M50/572
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 [2023/38]
Extension statesBANot yet paid
MENot yet paid
Validation statesKHNot yet paid
MANot yet paid
MDNot yet paid
TNNot yet paid
TitleGerman:BATTERIE, ELEKTRISCHE VORRICHTUNG, UND BATTERIEHERSTELLUNGSVERFAHREN UND VORRICHTUNG ZUR BATTERIEHERSTELLUNG[2025/28]
English:BATTERY, ELECTRIC DEVICE, METHOD FOR MANUFACTURING BATTERY, AND DEVICE FOR MANUFACTURING BATTERY[2025/28]
French:BATTERIE, APPAREIL ÉLECTRIQUE, ET PROCÉDÉ DE FABRICATION DE BATTERIE ET DISPOSITIF DE FABRICATION DE BATTERIE[2025/28]
Former [2023/38]BATTERIE, ELEKTRISCHE VORRICHTUNG UND BATTERIEHERSTELLUNGSVERFAHREN UND -VORRICHTUNG
Former [2023/38]BATTERY, ELECTRICAL APPARATUS, AND BATTERY MANUFACTURING METHOD AND DEVICE
Former [2023/38]BATTERIE, APPAREIL ÉLECTRIQUE, ET PROCÉDÉ ET DISPOSITIF DE FABRICATION DE BATTERIE
Entry into regional phase17.10.2022Translation filed 
21.11.2022National basic fee paid 
21.11.2022Search fee paid 
21.11.2022Designation fee(s) paid 
21.11.2022Examination fee paid 
Examination procedure21.11.2022Examination requested  [2023/38]
22.01.2025Amendment by applicant (claims and/or description)
22.01.2025Date on which the examining division has become responsible
17.04.2025Communication of intention to grant the patent
30.06.2025Fee for grant paid
30.06.2025Fee for publishing/printing paid
30.06.2025Receipt of the translation of the claim(s)
Fees paidRenewal fee
15.11.2023Renewal fee patent year 03
14.11.2024Renewal fee patent year 04
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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  TooltipBG06.08.2025
ES06.08.2025
FI06.08.2025
HR06.08.2025
LV06.08.2025
NL06.08.2025
PL06.08.2025
SE06.08.2025
NO06.11.2025
RS06.11.2025
GR07.11.2025
IS06.12.2025
PT09.12.2025
[2026/11]
Former [2026/10]BG06.08.2025
FI06.08.2025
HR06.08.2025
LV06.08.2025
NL06.08.2025
PL06.08.2025
SE06.08.2025
NO06.11.2025
RS06.11.2025
GR07.11.2025
IS06.12.2025
PT09.12.2025
Former [2026/09]FI06.08.2025
HR06.08.2025
LV06.08.2025
NL06.08.2025
SE06.08.2025
NO06.11.2025
GR07.11.2025
IS06.12.2025
PT09.12.2025
Former [2026/08]FI06.08.2025
HR06.08.2025
NL06.08.2025
NO06.11.2025
IS06.12.2025
PT09.12.2025
Former [2026/07]IS06.12.2025
Documents cited:Search[XI] WO2020259434  (CONTEMPORARY AMPEREX TECHNOLOGY CO LTD et al.) [X] 1-3,14-16 * abstract * * figure 1 *[I] 4-13
 [A] CN214589152  (NINGDE CONTEMPORARY AMPEREX TECH CO LTD et al.) [A] 1-16 * abstract * * figure 3 *
 [A] US2020212386  (JIN HAIZU et al.) [A] 1-16 * abstract * * paragraph [0083] *
 [A] US2020099027  (ISHIBASHI KENGO et al.) [A] 1-16 * abstract * * paragraph [0057] *
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.