Extract from the Register of European Patents

EP About this file: EP4248937

EP4248937 - PLAQUE DISCLOSING COMPOSITION [Right-click to bookmark this link]
StatusThe application has been withdrawn
Status updated on  21.11.2025
Database last updated on 28.03.2026
FormerRequest for examination was made
Status updated on  25.08.2023
FormerThe international publication has been made
Status updated on  02.07.2022
Most recent event   Tooltip21.11.2025Withdrawal of applicationpublished on 24.12.2025  [2025/52]
Applicant(s)For all designated states
Aiobio Co., Ltd.
8th No.801, 38, Teheran-ro 4-gil
Gangnam-gu
Seoul 06241 / KR
For all designated states
Tecozyme Inc
106-1 ho, 101, Daehak-ro
Jongno-gu
Seoul 03080 / KR
[2023/39]
Inventor(s)01 / YOON, Hong Cheol
Seoul 06583 / KR
02 / NAM, Yoon
Seoul 04147 / KR
 [2023/39]
Representative(s)Jung, Minkyu
Wuesthoff & Wuesthoff
Patentanwälte und Rechtsanwalt PartG mbB
Schweigerstraße 2
81541 München / DE
[N/P]
Former [2023/39]Jung, Minkyu
Wuesthoff & Wuesthoff
Patentanwälte PartG mbB
Schweigerstraße 2
81541 München / DE
Application number, filing date21911474.121.12.2021
[2023/39]
WO2021KR19503
Priority number, dateKR2020017947321.12.2020         Original published format: KR 20200179473
[2023/39]
Filing languageKO
Procedural languageEN
PublicationType: A1 Application with search report
No.:WO2022139407
Date:30.06.2022
Language:KO
[2022/26]
Type: A1 Application with search report 
No.:EP4248937
Date:27.09.2023
Language:EN
[2023/39]
Search report(s)International search report - published on:KR30.06.2022
(Supplementary) European search report - dispatched on:EP12.09.2024
ClassificationIPC:A61K6/25, A61K8/67, A61Q11/00
[2024/42]
CPC:
A61K6/65 (EP); A61K6/25 (EP,KR); A61K8/673 (EP,US);
A61Q11/00 (EP,US); A61K2800/434 (EP,US); A61K2800/81 (EP,US);
A61K2800/92 (EP,US) (-)
Former IPC [2023/39]A61K6/25
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 [2023/39]
TitleGerman:PLAQUEANZEIGENDE ZUSAMMENSETZUNG[2023/39]
English:PLAQUE DISCLOSING COMPOSITION[2023/39]
French:COMPOSITION RÉVÉLATRICE DE PLAQUE[2023/39]
Entry into regional phase20.06.2023Translation filed 
20.06.2023National basic fee paid 
20.06.2023Search fee paid 
20.06.2023Designation fee(s) paid 
20.06.2023Examination fee paid 
Examination procedure20.06.2023Examination requested  [2023/39]
26.03.2025Amendment by applicant (claims and/or description)
26.03.2025Date on which the examining division has become responsible
18.11.2025Application withdrawn by applicant  [2025/52]
Fees paidRenewal fee
28.11.2023Renewal fee patent year 03
28.11.2024Renewal fee patent year 04
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Documents cited:Search[X] US9211420  (PATEL MADHUSUDAN et al.) [X] 1-9 * claims 1-21 *
 [A] EP0421838  (COLGATE PALMOLIVE CO et al.) [A] 1-9
 [A] US4302439  (SELWYN STEPHEN L et al.) [A] 1-9 * the whole document *
 [A] EP2516014  (COLGATE PALMOLIVE CO et al.) [A] 1-9 * the whole document *
 [A] WO2013138916  (UNIV TORONTO et al.) [A] 1-9 * claims 1,2-3 *
 [A] WO2020126569  (EMPIDENT GMBH et al.) [A] 1-9 * the whole document *
 [A]   TONGLAIROUM PRASOPCHAI ET AL: "Erythrosine Incorporated Fast-Dissolving Patches for Dental Plaque Disclosing", ADVANCES IN PHARMACOLOGY AND PHARMACY, vol. 5, no. 1, 1 April 2017 (2017-04-01), pages 12 - 19, XP093199138, ISSN: 2332-0036, Retrieved from the Internet [retrieved on 20240827], DOI: 10.13189/app.2017.050102 [A] 1-9 * the whole document *
International search[Y] KR20090009856  (HARVARD COLLEGE et al.) [Y] 1-9 * See claims 1, 2, 30, 41, 51 and 52. *
 [Y] KR20120091456  (COLGATE PALMOLIVE CO et al.) [Y] 1-9 * See claim 1; and paragraphs [0020]-[0024] and [0031]-[0037]. *
 [A] KR20140143420  (COLGATE PALMOLIVE CO et al.) [A] 1-9 * See entire document. *
 [A] JP2013514868   [A] 1-9 * See entire document. *
 [A] WO2020126569  (EMPIDENT GMBH et al.) [A] 1-9 * See entire document. *
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