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Extract from the Register of European Patents

EP About this file: EP4451448

EP4451448 - END COVER ASSEMBLY, BATTERY CELL, BATTERY AND ELECTRIC APPARATUS [Right-click to bookmark this link]
StatusRequest for examination was made
Status updated on  20.09.2024
Database last updated on 28.03.2026
FormerThe international publication has been made
Status updated on  01.03.2024
Most recent event   Tooltip26.11.2025Amendment by applicant 
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
[2024/43]
Inventor(s)01 / CHEN, Long
Ningde City, Fujian 352100 / CN
02 / LIN, Denghua
Ningde City, Fujian 352100 / CN
03 / ZHENG, Yulian
Ningde City, Fujian 352100 / CN
04 / WANG, Peng
Ningde City, Fujian 352100 / CN
05 / JIN, Haizu
Ningde City, Fujian 352100 / CN
 [2024/43]
Representative(s)Ran, Handong, et al
Maucher Jenkins
Seventh Floor Offices
Artillery House
11-19 Artillery Row
London SW1P 1RT / GB
[2024/43]
Application number, filing date22956078.425.08.2022
[2024/43]
WO2022CN114899
Filing languageZH
Procedural languageEN
PublicationType: A1 Application with search report
No.:WO2024040532
Date:29.02.2024
Language:ZH
[2024/09]
Type: A1 Application with search report 
No.:EP4451448
Date:23.10.2024
Language:EN
[2024/43]
Search report(s)International search report - published on:CN29.02.2024
(Supplementary) European search report - dispatched on:EP13.05.2025
ClassificationIPC:H01M50/342, H01M50/15
[2025/24]
CPC:
H01M50/15 (EP); H01M50/394 (CN); H01M50/3425 (EP,US);
H01M50/103 (CN); H01M50/147 (US); H01M50/30 (CN);
H01M2220/20 (US); Y02E60/10 (EP) (-)
Former IPC [2024/43]H01M50/342
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 [2024/43]
TitleGerman:ENDKAPPENANORDNUNG, BATTERIEZELLE, BATTERIE UND ELEKTRISCHE VORRICHTUNG[2024/43]
English:END COVER ASSEMBLY, BATTERY CELL, BATTERY AND ELECTRIC APPARATUS[2024/43]
French:ENSEMBLE COUVERCLE D'EXTRÉMITÉ, ÉLÉMENT DE BATTERIE, BATTERIE ET APPAREIL ÉLECTRIQUE[2024/43]
Entry into regional phase19.07.2024Translation filed 
19.07.2024National basic fee paid 
19.07.2024Search fee paid 
19.07.2024Designation fee(s) paid 
19.07.2024Examination fee paid 
Examination procedure19.07.2024Examination requested  [2024/43]
24.11.2025Amendment by applicant (claims and/or description)
24.11.2025Date on which the examining division has become responsible
Fees paidRenewal fee
19.07.2024Renewal fee patent year 03
26.08.2025Renewal 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.
Documents cited:Search[XIY] CN217182296  (NINGDE CONTEMPORARY AMPEREX TECH CO LTD et al.) [X] 1-2,13-15 * page 7 - page 14 * * figures 1-8 *[I] 3-6,8-11 [Y] 7,12
 [XIY] CN104485479  (NINGDE AMPEREX TECHNOLOGY LTD et al.) [X] 1-2,13 * paragraph [0035] - paragraph [0046] * * figures 1-7 *[I] 3-6,8-11,14-15 [Y] 1-15
 [Y] CN215989098  (NINGDE ERA NEW ENERGY SCIENCE AND TECH STOCK LIMITED COMPANY et al.) [Y] 1-6,8-11,13-15 * page 11 - page 22 * * figures 1-15 *
 [Y] WO2022105140  (CHANGZHOU RED FAIRY PRECISION TECHNOLOGY CO LTD et al.) [Y] 12 * paragraph [0011] * * figures 1-9 *
 [Y] CN216354617  (NINGDE ERA NEW ENERGY SCIENCE AND TECH STOCK LIMITED COMPANY et al.) [Y] 7 * figure 5 *
 [Y] CN217114584  (NINGDE CONTEMPORARY AMPEREX TECH CO LTD et al.) [Y] 7 * figure 4 *
 [Y] US2020212379  (SHI DONGYANG et al.) [Y] 7 * figure 4 *
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.