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Extract from the Register of European Patents

EP About this file: EP4077255

EP4077255 - PROCESS FOR THE PREPARATON OF HYDROQUINONES [Right-click to bookmark this link]
StatusNo opposition filed within time limit
Status updated on  06.12.2024
Database last updated on 28.03.2026
FormerThe patent has been granted
Status updated on  29.12.2023
FormerGrant of patent is intended
Status updated on  24.08.2023
FormerRequest for examination was made
Status updated on  23.09.2022
FormerThe international publication has been made
Status updated on  25.06.2021
Formerunknown
Status updated on  18.12.2020
Most recent event   Tooltip11.07.2025Lapse of the patent in a contracting state
New state(s): MC		published on 13.08.2025  [2025/33]
Applicant(s)For all designated states
DSM IP Assets B.V.
Wilhelminasingel 39
6221 BE Maastricht / NL
[2024/40]
Former [2022/43]For all designated states
DSM IP Assets B.V.
Het Overloon 1
6411 TE Heerlen / NL
Inventor(s)01 / BONRATH, Werner
c/o DSM Nutritional Products Ltd, Patent
Department Wurmisweg 576
4303 Kaiseraugst / CH
02 / NETSCHER, Thomas
c/o DSM Nutritional Products Ltd, Patent
Department Wurmisweg 576
4303 Kaiseraugst / CH
03 / MEDLOCK, Jonathan Alan
c/o DSM Nutritional Products Ltd, Patent
Department Wurmisweg 576
4303 Kaiseraugst / CH
 [2022/43]
Representative(s)dsm-firmenich IP
DSM-Firmenich AG
Wurmisweg 576
4303 Kaiseraugst / CH
[N/P]
Former [2024/05]dsm-firmenich IP
DSM-Firmenich AG
Wurmisweg 576
4303 Kaiseraugst / CH
Former [2022/43]Dux, Roland
DSM Nutritional Products Ltd
Patent Department
Wurmisweg 576
4303 Kaiseraugst / CH
Application number, filing date20821235.714.12.2020
[2022/43]
WO2020EP85940
Priority number, dateEP2019021778519.12.2019         Original published format: EP 19217785
[2022/43]
Filing languageEN
Procedural languageEN
PublicationType: A1 Application with search report
No.:WO2021122436
Date:24.06.2021
Language:EN
[2021/25]
Type: A1 Application with search report 
No.:EP4077255
Date:26.10.2022
Language:EN
The application published by WIPO in one of the EPO official languages on 24.06.2021 takes the place of the publication of the European patent application.
[2022/43]
Type: B1 Patent specification 
No.:EP4077255
Date:31.01.2024
Language:EN
[2024/05]
Search report(s)International search report - published on:EP24.06.2021
ClassificationIPC:C07C37/07, C07C39/08
[2022/43]
CPC:
C07C37/07 (EP)
C-Set:
C07C37/07, C07C39/08 (EP)
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 [2022/43]
Extension statesBANot yet paid
MENot yet paid
Validation statesKHNot yet paid
MANot yet paid
MDNot yet paid
TNNot yet paid
TitleGerman:VERFAHREN ZUR HERSTELLUNG VON HYDROCHINONEN[2022/43]
English:PROCESS FOR THE PREPARATON OF HYDROQUINONES[2022/43]
French:PROCÉDÉ DE PRÉPARATION D'HYDROQUINONES[2023/31]
Former [2022/43]PROCÉDÉ POUR LA PRÉPARATION D'HYDROQUINONES
Entry into regional phase08.06.2022National basic fee paid 
08.06.2022Designation fee(s) paid 
08.06.2022Examination fee paid 
Examination procedure08.06.2022Examination requested  [2022/43]
08.06.2022Date on which the examining division has become responsible
10.01.2023Amendment by applicant (claims and/or description)
25.08.2023Communication of intention to grant the patent
11.12.2023Fee for grant paid
11.12.2023Fee for publishing/printing paid
11.12.2023Receipt of the translation of the claim(s)
Opposition(s)01.11.2024No opposition filed within time limit [2025/02]
Fees paidRenewal fee
14.11.2022Renewal fee patent year 03
15.11.2023Renewal fee patent year 04
Opt-out from the exclusive  Tooltip
competence of the Unified
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.
Lapses during opposition  TooltipAT31.01.2024
BG31.01.2024
CZ31.01.2024
DK31.01.2024
EE31.01.2024
FI31.01.2024
HR31.01.2024
LT31.01.2024
LV31.01.2024
MC31.01.2024
NL31.01.2024
PL31.01.2024
RO31.01.2024
SE31.01.2024
SI31.01.2024
SK31.01.2024
SM31.01.2024
NO30.04.2024
RS30.04.2024
GR01.05.2024
IS31.05.2024
PT31.05.2024
[2025/33]
Former [2025/22]AT31.01.2024
BG31.01.2024
CZ31.01.2024
DK31.01.2024
EE31.01.2024
FI31.01.2024
HR31.01.2024
LT31.01.2024
LV31.01.2024
NL31.01.2024
PL31.01.2024
RO31.01.2024
SE31.01.2024
SI31.01.2024
SK31.01.2024
SM31.01.2024
NO30.04.2024
RS30.04.2024
GR01.05.2024
IS31.05.2024
PT31.05.2024
Former [2024/49]AT31.01.2024
BG31.01.2024
CZ31.01.2024
DK31.01.2024
EE31.01.2024
FI31.01.2024
HR31.01.2024
LT31.01.2024
LV31.01.2024
NL31.01.2024
PL31.01.2024
RO31.01.2024
SE31.01.2024
SK31.01.2024
SM31.01.2024
NO30.04.2024
RS30.04.2024
GR01.05.2024
IS31.05.2024
PT31.05.2024
Former [2024/48]AT31.01.2024
BG31.01.2024
CZ31.01.2024
DK31.01.2024
EE31.01.2024
FI31.01.2024
HR31.01.2024
LT31.01.2024
LV31.01.2024
NL31.01.2024
PL31.01.2024
SE31.01.2024
SM31.01.2024
NO30.04.2024
RS30.04.2024
GR01.05.2024
IS31.05.2024
PT31.05.2024
Former [2024/47]AT31.01.2024
BG31.01.2024
DK31.01.2024
FI31.01.2024
HR31.01.2024
LT31.01.2024
LV31.01.2024
NL31.01.2024
PL31.01.2024
SE31.01.2024
SM31.01.2024
NO30.04.2024
RS30.04.2024
GR01.05.2024
IS31.05.2024
PT31.05.2024
Former [2024/37]AT31.01.2024
BG31.01.2024
FI31.01.2024
HR31.01.2024
LT31.01.2024
LV31.01.2024
NL31.01.2024
PL31.01.2024
SE31.01.2024
NO30.04.2024
RS30.04.2024
GR01.05.2024
IS31.05.2024
PT31.05.2024
Former [2024/36]AT31.01.2024
BG31.01.2024
FI31.01.2024
HR31.01.2024
LT31.01.2024
LV31.01.2024
NL31.01.2024
PL31.01.2024
NO30.04.2024
RS30.04.2024
GR01.05.2024
IS31.05.2024
PT31.05.2024
Former [2024/35]AT31.01.2024
BG31.01.2024
FI31.01.2024
HR31.01.2024
LT31.01.2024
NL31.01.2024
NO30.04.2024
RS30.04.2024
GR01.05.2024
IS31.05.2024
Former [2024/33]LT31.01.2024
NO30.04.2024
IS31.05.2024
Former [2024/32]IS31.05.2024
Cited inInternational search[A] DE2250066  (KURARAY CO et al.)
 [AD] EP0264823  (MITSUBISHI GAS CHEMICAL CO et al.)
 [A]   BENJAMIN SCHFFNER ET AL: "Organic Carbonates as Solvents in Synthesis and Catalysis", CHEMICAL REVIEWS, vol. 110, no. 8, 11 August 2010 (2010-08-11), US, pages 4554 - 4581, XP055618498, ISSN: 0009-2665, DOI: 10.1021/cr900393d

DOI:   http://dx.doi.org/10.1021/cr900393d
by applicantDE683908
 DE1940386
 EP0264823
 US2003060383
   P. ZIOSI ET AL., CATAL. SCI. TECHNOL., vol. 4, 2014, pages 4386 - 4395
   K. SATOY. FUJIMAA. YAMADA, BULL. CHEM. SOC. JAP., vol. 41, 1968, pages 442 - 444
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.