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Extract from the Register of European Patents

EP About this file: EP3919476

EP3919476 - QUATERNARY AMMONIUM SALT COMPOUND, PREPARATION METHOD THEREFOR AND USE THEREOF [Right-click to bookmark this link]
StatusRequest for examination was made
Status updated on  05.11.2021
Database last updated on 26.06.2024
FormerThe international publication has been made
Status updated on  08.08.2020
Most recent event   Tooltip24.01.2024New entry: Renewal fee paid 
Applicant(s)For all designated states
West China Hospital, Sichuan University
No.37 Guoxue Xiang
Wuhou District
Chengdu, Sichuan 610041 / CN
[2021/49]
Inventor(s)01 / KE, Bowen
No.37, Guoxue Xiang, Wuhou District
Chengdu, Sichuan 610041 / CN
02 / LIU, Jin
No.37, Guoxue Xiang, Wuhou District
Chengdu, Sichuan 610041 / CN
03 / ZHANG, Wensheng
No.37, Guoxue Xiang, Wuhou District
Chengdu, Sichuan 610041 / CN
04 / YANG, Jun
No.37, Guoxue Xiang, Wuhou District
Chengdu, Sichuan 610041 / CN
05 / TANG, Lei
No.37, Guoxue Xiang, Wuhou District
Chengdu, Sichuan 610041 / CN
[N/P]
Former [2021/49]01 / KE, Bowen
Chengdu, Sichuan 610041 / CN
02 / LIU, Jin
Chengdu, Sichuan 610041 / CN
03 / ZHANG, Wensheng
Chengdu, Sichuan 610041 / CN
04 / YANG, Jun
Chengdu, Sichuan 610041 / CN
05 / TANG, Lei
Chengdu, Sichuan 610041 / CN
Representative(s)Altmann Stößel Dick Patentanwälte PartG mbB
Theodor-Heuss-Anlage 2
68165 Mannheim / DE
[2021/49]
Application number, filing date20748885.921.01.2020
[2021/49]
WO2020CN73387
Priority number, dateCN20191010280301.02.2019         Original published format: CN201910102803
[2021/49]
Filing languageZH
Procedural languageEN
PublicationType: A1 Application with search report
No.:WO2020156359
Date:06.08.2020
Language:ZH
[2020/32]
Type: A1 Application with search report 
No.:EP3919476
Date:08.12.2021
Language:EN
[2021/49]
Search report(s)International search report - published on:CN06.08.2020
(Supplementary) European search report - dispatched on:EP25.10.2022
ClassificationIPC:C07D211/60, C07D207/16, C07D205/04, C07D223/06, C07C237/00, A61P23/02, A61K31/167
[2021/49]
CPC:
A61P23/02 (EP,CN); C07D211/60 (EP,CN,US); C07D205/04 (EP,CN,US);
C07D207/16 (EP,CN,US); C07D223/06 (EP,CN,US); C07D413/06 (CN,US);
C07D413/12 (CN,US) (-)
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 [2021/49]
TitleGerman:QUARTÄRE AMMONIUMSALZVERBINDUNG, HERSTELLUNGSVERFAHREN DAFÜR UND VERWENDUNG DAVON[2021/49]
English:QUATERNARY AMMONIUM SALT COMPOUND, PREPARATION METHOD THEREFOR AND USE THEREOF[2021/49]
French:COMPOSÉ DE SEL D'AMMONIUM QUATERNAIRE, SON PROCÉDÉ DE PRÉPARATION ET SON UTILISATION[2021/49]
Entry into regional phase30.08.2021Translation filed 
30.08.2021National basic fee paid 
30.08.2021Search fee paid 
30.08.2021Designation fee(s) paid 
30.08.2021Examination fee paid 
Examination procedure30.08.2021Examination requested  [2021/49]
12.05.2023Amendment by applicant (claims and/or description)
Fees paidRenewal fee
23.01.2022Renewal fee patent year 03
20.01.2023Renewal fee patent year 04
24.01.2024Renewal fee patent year 05
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Documents cited:Search[A]WO2018121427  (JENKEM TECH CO LTD TIANJIN [CN]);
 [E]EP3750870  (WEST CHINA HOSPITAL SICHUAN UNIV [CN])
International search[A]CN1295558  (ADVANCED MEDICINE INC [US]) [A] 1-11 * claims 1-7, 35 and 40, and description, page 48 and 49, tables, and compounds 106-112 *;
 [A]CN103601650  (WEST CHINA HOSPITAL SICHUAN UNIV) [A] 1-11* entire document *;
 [PX]CN110156665  (WEST CHINA HOSPITAL SICHUAN UNIV) [PX] 1-6, 8-11 * claims 1-15 and 20-24 *
by applicant   - COURTNEY KR, J Pharmacol Exp Ther., (19750000), vol. 195, pages 225 - 236
    - CRAIGR, Ries. Anesthesiology., (20090000), vol. 111, pages 122 - 126
    - DANIEL S. KOHANE, PNAS, (20100000), vol. 107, pages 3745 - 3750
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.