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Extract from the Register of European Patents

EP About this file: EP4318776

EP4318776 - SEPARATOR AND PREPARATION METHOD THEREFOR, BATTERY, AND ELECTRIC APPARATUS [Right-click to bookmark this link]
StatusRequest for examination was made
Status updated on  05.01.2024
Database last updated on 14.03.2026
FormerThe international publication has been made
Status updated on  29.09.2023
Most recent event   Tooltip07.01.2026New entry: Renewal fee paid 
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 [2024/06]For all designated states
Contemporary Amperex Technology Co., Limited
2 Xingang Road, Zhangwan Town
Jiaocheng District
Ningde, Fujian 352100 / CN
Inventor(s)01 / CHENG, Xiaonan
Ningde, Fujian 352100 / CN
02 / HONG, Haiyi
Ningde, Fujian 352100 / CN
03 / MA, Yanyun
Ningde, Fujian 352100 / CN
04 / YANG, Jianrui
Ningde, Fujian 352100 / CN
05 / ZHENG, Yi
Ningde, Fujian 352100 / CN
06 / SUN, Chengdong
Ningde, Fujian 352100 / CN
 [2024/06]
Representative(s)Lorenz Seidler Gossel Part. mbB
Widenmayerstr. 23
80538 München / DE
[N/P]
Former [2024/06]Laufhütte, Dieter
Lorenz Seidler Gossel
Rechtsanwälte Patentanwälte
Partnerschaft mbB
Widenmayerstraße 23
80538 München / DE
Application number, filing date23773584.002.03.2023
[2024/06]
WO2023CN79397
Priority number, dateWO2022CN8317125.03.2022         Original published format: PCT/CN2022/083171
WO2022CN14434930.12.2022         Original published format: PCT/CN2022/144349
[2024/06]
Filing languageZH
Procedural languageEN
PublicationType: A1 Application with search report
No.:WO2023179333
Date:28.09.2023
Language:ZH
[2023/39]
Type: A1 Application with search report 
No.:EP4318776
Date:07.02.2024
Language:EN
[2024/06]
Search report(s)International search report - published on:CN28.09.2023
(Supplementary) European search report - dispatched on:EP14.02.2025
ClassificationIPC:H01M50/409, H01M50/446
[2024/06]
CPC:
H01M50/403 (EP,US); H01M50/446 (EP,KR,US); H01M50/417 (EP);
H01M50/42 (EP,US); H01M50/434 (US); H01M50/443 (EP,US);
H01M50/449 (EP); H01M50/451 (KR,US); H01M50/489 (US);
H01M50/494 (US); H01M2220/20 (US); Y02E60/10 (EP,KR) (-)
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,   ME,   MK,   MT,   NL,   NO,   PL,   PT,   RO,   RS,   SE,   SI,   SK,   SM,   TR [2024/06]
TitleGerman:SEPARATOR UND HERSTELLUNGSVERFAHREN DAFÜR, BATTERIE UND ELEKTRISCHE VORRICHTUNG[2024/06]
English:SEPARATOR AND PREPARATION METHOD THEREFOR, BATTERY, AND ELECTRIC APPARATUS[2024/06]
French:SÉPARATEUR ET SON PROCÉDÉ DE PRÉPARATION, BATTERIE ET APPAREIL ÉLECTRIQUE[2024/06]
Entry into regional phase30.10.2023Translation filed 
30.10.2023National basic fee paid 
30.10.2023Search fee paid 
30.10.2023Designation fee(s) paid 
30.10.2023Examination fee paid 
Examination procedure30.10.2023Examination requested  [2024/06]
25.03.2025Amendment by applicant (claims and/or description)
25.03.2025Date on which the examining division has become responsible
Fees paidRenewal fee
06.01.2025Renewal fee patent year 03
06.01.2026Renewal fee patent year 04
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Documents cited:Search[XI] KR20140124321  (SAMSUNG SDI CO LTD et al.) [X] 1-8,10-14 * examples 1 and 11, preparation example 1; claim 24 * * paragraphs [0139] , [ 150] - [0152] *[I] 15
 [XI] US2021234233  (FAN XIAOHE et al.) [X] 1-14 * figures 1-2; example 1; table 1 * * paragraphs [0077] - [0079] - [0 98] - [0100] *[I] 15
International search[A] CN109004164  (CHINA AVIATION LITHIUM BATTERY RES INST CO LTD et al.) [A] 1-34 * description, paragraphs 0004-0019 *
 [A] CN209929388  (YINLONG ENERGY CO LTD et al.) [A] 1-34 * entire document *
 [A] CN109742290  (CHINA AVIATION LITHIUM BATTERY CO LTD et al.) [A] 1-34 * entire document *
 [A] CN113224466  (UNIV XIAMEN et al.) [A] 1-34 * entire document *
 [A] CN113130843  (FUJIAN INST RES STR MATTER CAS et al.) [A] 1-34 * entire document *
 [A] US2005100794  (CHAMBERLAIN RICHARD V II et al.) [A] 1-34 * entire document *
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.