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Extract from the Register of European Patents

EP About this file: EP4129443

EP4129443 - POLYTETRAFLUOROETHYLENE COMPOSITE FILTER MATERIAL [Right-click to bookmark this link]
StatusThe patent has been granted
Status updated on  10.05.2024
Database last updated on 14.05.2024
FormerGrant of patent is intended
Status updated on  04.02.2024
FormerExamination is in progress
Status updated on  15.12.2023
FormerRequest for examination was made
Status updated on  06.01.2023
FormerThe international publication has been made
Status updated on  02.10.2021
Most recent event   Tooltip10.05.2024(Expected) grantpublished on 12.06.2024 [2024/24]
Applicant(s)For all designated states
Zhonghao Chenguang Research Institute of Chemical Industry Co., Ltd.
193 Chenguang Road
Fushi Town
Fushun Country
Zigong, Sichuan 643201 / CN
[2023/06]
Inventor(s)01 / XIAO, Ping
193 Chenguang Road, Fushi Town, Fushun Country
Zigong, Sichuan 643201 / CN
02 / XIAO, Zhongliang
193 Chenguang Road, Fushi Town, Fushun Country
Zigong, Sichuan 643201 / CN
03 / CAI, Chunyang
193 Chenguang Road, Fushi Town, Fushun Country
Zigong, Sichuan 643201 / CN
04 / TANG, Yi
193 Chenguang Road, Fushi Town, Fushun Country
Zigong, Sichuan 643201 / CN
05 / LI, Hui
193 Chenguang Road, Fushi Town, Fushun Country
Zigong, Sichuan 643201 / CN
06 / SU, Jian
193 Chenguang Road, Fushi Town, Fushun Country
Zigong, Sichuan 643201 / CN
 [2023/06]
Representative(s)Dilg, Haeusler, Schindelmann Patentanwaltsgesellschaft mbH
Leonrodstraße 58
80636 München / DE
[2023/06]
Application number, filing date20927316.824.08.2020
[2023/06]
WO2020CN110705
Priority number, dateCN20201023023927.03.2020         Original published format: CN202010230239
[2023/06]
Filing languageZH
Procedural languageEN
PublicationType: A1 Application with search report
No.:WO2021189762
Date:30.09.2021
Language:ZH
[2021/39]
Type: A1 Application with search report 
No.:EP4129443
Date:08.02.2023
Language:EN
[2023/06]
Type: B1 Patent specification
No.:EP4129443
Date:12.06.2024
Language:EN
[2024/24]
Search report(s)International search report - published on:CN30.09.2021
(Supplementary) European search report - dispatched on:EP21.07.2023
ClassificationIPC:B01D39/14, B01D71/36, B32B27/12, B01D39/16, A41D13/11, A62B23/02, B01D67/00, B32B5/02, D04H1/56, D04H1/4291, B01D46/00, B01D69/02, B01D69/10, B01D71/02, B32B27/32, B32B27/16, B01D69/12
[2023/34]
CPC:
B01D71/36 (EP,KR); B01D39/14 (KR); B01D46/543 (CN,KR);
B01D39/16 (CN,KR,US); B01D39/1623 (EP); B01D39/1692 (EP);
B01D46/0001 (EP,CN,KR); B01D46/0028 (CN,KR,US); B01D46/54 (US);
B01D67/00042 (EP); B01D67/009 (EP); B01D69/02 (EP);
B01D69/1071 (EP); B01D69/1216 (EP); B32B27/12 (EP,KR);
B32B27/16 (EP); B32B27/322 (EP); B32B5/022 (EP);
D04H1/4291 (EP); D04H1/56 (EP); A41D13/11 (EP);
A62B23/02 (EP); B01D2239/0258 (EP); B01D2239/0442 (EP);
B01D2239/0478 (EP); B01D2239/0622 (EP); B01D2239/0654 (EP);
B01D2239/1208 (EP); B01D2239/1216 (EP); B01D2325/48 (EP);
B01D69/105 (EP); B01D69/108 (EP); B01D69/1213 (EP);
B01D71/021 (EP); B01D71/0211 (EP); B01D71/0212 (EP);
B01D71/022 (EP); B01D71/262 (EP); B32B2260/021 (EP);
B32B2260/046 (EP); B32B2262/0253 (EP); B32B2262/0261 (EP);
B32B2262/0284 (EP); B32B2262/106 (EP); B32B2262/124 (EP);
B32B2307/732 (EP) (-)
Former IPC [2023/06]B01D39/14, B01D71/36, B32B27/12
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 [2023/06]
Extension statesBANot yet paid
MENot yet paid
Validation statesKHNot yet paid
MANot yet paid
MDNot yet paid
TNNot yet paid
TitleGerman:VERBUNDFILTERMATERIAL AUS POLYTETRAFLUORETHYLEN[2023/06]
English:POLYTETRAFLUOROETHYLENE COMPOSITE FILTER MATERIAL[2023/06]
French:MATÉRIAU FILTRANT COMPOSITE DE POLYTÉTRAFLUOROÉTHYLÈNE[2023/06]
Entry into regional phase30.12.2021Translation filed 
30.12.2021National basic fee paid 
30.12.2021Search fee paid 
30.12.2021Designation fee(s) paid 
30.12.2021Examination fee paid 
Examination procedure30.12.2021Examination requested  [2023/06]
15.11.2023Date on which the examining division has become responsible
14.12.2023Despatch of a communication from the examining division (Time limit: M01)
18.12.2023Reply to a communication from the examining division
05.02.2024Communication of intention to grant the patent
07.05.2024Fee for grant paid
07.05.2024Fee for publishing/printing paid
07.05.2024Receipt of the translation of the claim(s)
Fees paidRenewal fee
25.08.2022Renewal fee patent year 03
25.08.2023Renewal fee patent year 04
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Documents cited:Search[A]WO9850597  (PALL CORP [US], et al) [A] 1 * page 3, lines 29-36; claim 1 * * page 5, lines 5-6 * * page 6, lines 10-19 *;
 [A]WO0062900  (GORE ENTERPRISE HOLDINGS INC [US]) [A] 1-10 * page 4, lines 23-27; claims 1,2 * * page 5, lines 9-11 *;
 [A]KR20050046872  (CHOONGWAE ENVIRONMENT BIO TECH [KR]) [A] 1-10* figure 2; claims 1,3 *;
 [A]EP1750493  (GORE W L & ASS GMBH [DE]) [A] 1-10 * paragraph [0048]; claims 1,6 *;
 [A]KR20080098115  (AMO CO LTD [KR]) [A] 1-10 * paragraph [0009]; claim 1 *;
 [A]EP2196485  (GORE ENTERPRISE HOLDINGS INC [US]) [A] 1 * claims 1,7,9 *
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.