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Extract from the Register of European Patents

EP About this file: EP3728331

EP3728331 - BREAKDOWN OF CELLULOSETHERS BY OXIDATION [Right-click to bookmark this link]
Former [2020/44]OXIDATIVE DEGRADATION OF CELLULOSE ETHERS
[2023/18]
StatusNo opposition filed within time limit
Status updated on  20.06.2024
Database last updated on 19.03.2026
FormerThe patent has been granted
Status updated on  14.07.2023
FormerGrant of patent is intended
Status updated on  16.04.2023
FormerExamination is in progress
Status updated on  03.09.2021
FormerRequest for examination was made
Status updated on  25.09.2020
FormerThe international publication has been made
Status updated on  29.06.2019
Formerunknown
Status updated on  11.01.2019
Most recent event   Tooltip19.12.2025Lapse of the patent in a contracting state
New state(s): TR		published on 21.01.2026  [2026/04]
Applicant(s)For all designated states
SE Tylose GmbH & Co.KG
Kasteler Str. 45
65203 Wiesbaden / DE
[2023/22]
Former [2020/44]For all designated states
SE Tylose GmbH & Co.KG
Rheingaustrasse 190-196
65203 Wiesbaden / DE
Inventor(s)01 / KLEINERT, Mike
Schaftriebweg 4
55131 Mainz / DE
 [2020/44]
Representative(s)Weickmann & Weickmann PartmbB
Postfach 860 820
81635 München / DE
[N/P]
Former [2020/44]Weickmann, Hans, et al
Weickmann & Weickmann
Patent- und Rechtsanwälte PartmbB
Postfach 860 820
81635 München / DE
Application number, filing date18826656.320.12.2018
[2020/44]
WO2018EP86156
Priority number, dateDE20171022369022.12.2017         Original published format: DE102017223690
[2020/44]
Filing languageDE
Procedural languageDE
PublicationType: A1 Application with search report
No.:WO2019122104
Date:27.06.2019
Language:DE
[2019/26]
Type: A1 Application with search report 
No.:EP3728331
Date:28.10.2020
Language:DE
The application published by WIPO in one of the EPO official languages on 27.06.2019 takes the place of the publication of the European patent application.
[2020/44]
Type: B1 Patent specification 
No.:EP3728331
Date:16.08.2023
Language:DE
[2023/33]
Search report(s)International search report - published on:EP27.06.2019
ClassificationIPC:C08B11/08
[2020/44]
CPC:
C08B11/08 (EP,KR,US); C08B11/00 (KR); C08B11/20 (EP,KR,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 [2020/44]  
Extension statesBANot yet paid
MENot yet paid
Validation statesKHNot yet paid
MANot yet paid
MDNot yet paid
TNNot yet paid
TitleGerman:OXIDATIVER ABBAU VON CELLULOSEETHERN[2020/44]
English:BREAKDOWN OF CELLULOSETHERS BY OXIDATION[2023/18]
French:DÉGRADATION OXYDATIVE DE L'ETHER CELLULOSE[2023/18]
Former [2020/44]OXIDATIVE DEGRADATION OF CELLULOSE ETHERS
Former [2020/44]DÉGRADATION PAR OXYDATION DES ÉTHERS DE CELLULOSE
Entry into regional phase29.06.2020National basic fee paid 
29.06.2020Designation fee(s) paid 
29.06.2020Examination fee paid 
Examination procedure29.06.2020Examination requested  [2020/44]
29.06.2020Date on which the examining division has become responsible
27.10.2020Amendment by applicant (claims and/or description)
03.09.2021Despatch of a communication from the examining division (Time limit: M04)
06.12.2021Reply to a communication from the examining division
17.04.2023Communication of intention to grant the patent
05.07.2023Fee for grant paid
05.07.2023Fee for publishing/printing paid
05.07.2023Receipt of the translation of the claim(s)
Opposition(s)17.05.2024No opposition filed within time limit [2024/30]
Fees paidRenewal fee
30.10.2020Renewal fee patent year 03
30.11.2021Renewal fee patent year 04
30.11.2022Renewal fee patent year 05
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  TooltipCY20.12.2018
HU20.12.2018
CZ16.08.2023
ES16.08.2023
HR16.08.2023
MC16.08.2023
PL16.08.2023
RO16.08.2023
RS16.08.2023
SK16.08.2023
SM16.08.2023
TR16.08.2023
NO16.11.2023
GR17.11.2023
IS16.12.2023
GB20.12.2023
IE20.12.2023
CH31.12.2023
[2026/04]
Former [2025/39]CY20.12.2018
HU20.12.2018
CZ16.08.2023
ES16.08.2023
HR16.08.2023
MC16.08.2023
PL16.08.2023
RO16.08.2023
RS16.08.2023
SK16.08.2023
SM16.08.2023
NO16.11.2023
GR17.11.2023
IS16.12.2023
GB20.12.2023
IE20.12.2023
CH31.12.2023
Former [2025/36]CY20.12.2018
CZ16.08.2023
ES16.08.2023
HR16.08.2023
MC16.08.2023
PL16.08.2023
RO16.08.2023
RS16.08.2023
SK16.08.2023
SM16.08.2023
NO16.11.2023
GR17.11.2023
IS16.12.2023
GB20.12.2023
IE20.12.2023
CH31.12.2023
Former [2024/48]CZ16.08.2023
ES16.08.2023
HR16.08.2023
MC16.08.2023
PL16.08.2023
RO16.08.2023
RS16.08.2023
SK16.08.2023
SM16.08.2023
NO16.11.2023
GR17.11.2023
IS16.12.2023
GB20.12.2023
IE20.12.2023
CH31.12.2023
Former [2024/47]CZ16.08.2023
ES16.08.2023
HR16.08.2023
MC16.08.2023
PL16.08.2023
RO16.08.2023
RS16.08.2023
SK16.08.2023
SM16.08.2023
NO16.11.2023
GR17.11.2023
IS16.12.2023
GB20.12.2023
IE20.12.2023
Former [2024/46]CZ16.08.2023
ES16.08.2023
HR16.08.2023
MC16.08.2023
PL16.08.2023
RO16.08.2023
RS16.08.2023
SK16.08.2023
SM16.08.2023
NO16.11.2023
GR17.11.2023
IS16.12.2023
IE20.12.2023
Former [2024/40]CZ16.08.2023
ES16.08.2023
HR16.08.2023
MC16.08.2023
PL16.08.2023
RO16.08.2023
RS16.08.2023
SK16.08.2023
SM16.08.2023
NO16.11.2023
GR17.11.2023
IS16.12.2023
Former [2024/23]CZ16.08.2023
ES16.08.2023
HR16.08.2023
PL16.08.2023
RO16.08.2023
RS16.08.2023
SK16.08.2023
SM16.08.2023
NO16.11.2023
GR17.11.2023
IS16.12.2023
Former [2024/20]HR16.08.2023
PL16.08.2023
RS16.08.2023
SM16.08.2023
NO16.11.2023
GR17.11.2023
IS16.12.2023
Former [2024/10]HR16.08.2023
PL16.08.2023
RS16.08.2023
NO16.11.2023
GR17.11.2023
IS16.12.2023
Former [2024/09]NO16.11.2023
GR17.11.2023
IS16.12.2023
Former [2024/08]NO16.11.2023
GR17.11.2023
Cited inInternational search[XYI] DE19854770  (WOLFF WALSRODE AG et al.)
 [XYI] US6939961  (SCHLESIGER HARTWIG et al.)
 [XYI] WO0032636  (WOLFF WALSRODE AG et al.)
 [Y]   ASHISH SARODE ET AL: "Low-Viscosity Hydroxypropylcellulose (HPC) Grades SL and SSL: Versatile Pharmaceutical Polymers for Dissolution Enhancement, Controlled Release, and Pharmaceutical Processing", AAPS PHARMSCITECH, vol. 14, no. 1, 19 December 2012 (2012-12-19), pages 151 - 159, XP055569821, DOI: 10.1208/s12249-012-9897-x

DOI:   http://dx.doi.org/10.1208/s12249-012-9897-x
by applicantEP0018547
 WO03018637
 WO2009061815
 WO0032636
   THIELKING ET AL.: "Ullmanns's Encyclopedia of Industrial Chemistry", 2006, article "Cellulose Ethers"
   LEWIN, MACROMOL. SYMP., vol. 118, 1997, pages 715 - 724
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.