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Extract from the Register of European Patents

EP About this file: EP3270972

EP3270972 - PROCESS FOR PREPARING AN ESTERIFIED CELLULOSE ETHER IN THE PRESENCE OF AN ALIPHATIC CARBOXYLIC ACID [Right-click to bookmark this link]
StatusNo opposition filed within time limit
Status updated on  15.11.2019
Database last updated on 03.01.2025
FormerThe patent has been granted
Status updated on  07.12.2018
FormerGrant of patent is intended
Status updated on  19.07.2018
FormerRequest for examination was made
Status updated on  28.12.2017
FormerThe international publication has been made
Status updated on  22.08.2017
Most recent event   Tooltip08.07.2022Lapse of the patent in a contracting state
New state(s): MK		published on 10.08.2022  [2022/32]
Applicant(s)For all designated states
Dow Global Technologies LLC
2040 Dow Center
Midland, MI 48674 / US
[2018/04]
Inventor(s)01 / PETERMANN, Oliver
August-Wolff-Strasse 13
29699 Bomlitz / DE
02 / APPELL, Robert B.
1603 Building
Washington Street
Midland, MI 48674 / US
 [2018/04]
Representative(s)f & e patent
Braunsberger Feld 29
51429 Bergisch Gladbach / DE
[N/P]
Former [2018/04]f & e patent
Fleischer, Engels & Partner mbB, Patentanwälte
Braunsberger Feld 29
51429 Bergisch Gladbach / DE
Application number, filing date16711738.108.03.2016
[2018/04]
WO2016US21334
Priority number, dateUS201562133506P16.03.2015         Original published format: US 201562133506 P
[2018/04]
Filing languageEN
Procedural languageEN
PublicationType: A1 Application with search report
No.:WO2016148978
Date:22.09.2016
Language:EN
[2016/38]
Type: A1 Application with search report 
No.:EP3270972
Date:24.01.2018
Language:EN
The application published by WIPO in one of the EPO official languages on 22.09.2016 takes the place of the publication of the European patent application.
[2018/04]
Type: B1 Patent specification 
No.:EP3270972
Date:09.01.2019
Language:EN
[2019/02]
Search report(s)International search report - published on:EP22.09.2016
ClassificationIPC:A61K47/38, A61K9/16, C08B11/20, C08B13/00
[2018/04]
CPC:
C08B11/20 (EP,CN,US); C08B13/00 (EP,CN,KR,US); A61K47/38 (EP,CN,KR,US);
A61K9/16 (CN); A61K9/4816 (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 [2018/04]
Extension statesBANot yet paid
MENot yet paid
Validation statesMANot yet paid
MDNot yet paid
TitleGerman:VERFAHREN ZUR HERSTELLUNG EINES VERESTERTEN CELLULOSEETHERS IN GEGENWART EINER ALIPHATISCHEN CARBONSÄURE[2018/04]
English:PROCESS FOR PREPARING AN ESTERIFIED CELLULOSE ETHER IN THE PRESENCE OF AN ALIPHATIC CARBOXYLIC ACID[2018/04]
French:MÉTHODE DE PRÉPARATION D'UN ÉTHER DE CELLULOSE ESTÉRIFIÉ EN PRÉSENCE D'UN ACIDE CARBOXILIQUE ALIPHATIQUE[2018/04]
Entry into regional phase21.08.2017National basic fee paid 
21.08.2017Designation fee(s) paid 
21.08.2017Examination fee paid 
Examination procedure29.09.2016Request for preliminary examination filed
International Preliminary Examining Authority: EP
21.08.2017Examination requested  [2018/04]
21.08.2017Date on which the examining division has become responsible
04.12.2017Amendment by applicant (claims and/or description)
20.07.2018Communication of intention to grant the patent
27.11.2018Fee for grant paid
27.11.2018Fee for publishing/printing paid
27.11.2018Receipt of the translation of the claim(s)
Opposition(s)10.10.2019No opposition filed within time limit [2019/51]
Fees paidRenewal fee
13.03.2018Renewal fee patent year 03
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  TooltipHU08.03.2016
AL09.01.2019
AT09.01.2019
CY09.01.2019
CZ09.01.2019
DK09.01.2019
EE09.01.2019
ES09.01.2019
FI09.01.2019
HR09.01.2019
IT09.01.2019
LT09.01.2019
LV09.01.2019
MC09.01.2019
MK09.01.2019
NL09.01.2019
PL09.01.2019
RO09.01.2019
RS09.01.2019
SI09.01.2019
SK09.01.2019
SM09.01.2019
TR09.01.2019
IE08.03.2019
LU08.03.2019
MT08.03.2019
FR09.03.2019
CH31.03.2019
LI31.03.2019
BG09.04.2019
NO09.04.2019
GR10.04.2019
IS09.05.2019
PT09.05.2019
[2022/32]
Former [2021/32]HU08.03.2016
AL09.01.2019
AT09.01.2019
CY09.01.2019
CZ09.01.2019
DK09.01.2019
EE09.01.2019
ES09.01.2019
FI09.01.2019
HR09.01.2019
IT09.01.2019
LT09.01.2019
LV09.01.2019
MC09.01.2019
NL09.01.2019
PL09.01.2019
RO09.01.2019
RS09.01.2019
SI09.01.2019
SK09.01.2019
SM09.01.2019
TR09.01.2019
IE08.03.2019
LU08.03.2019
MT08.03.2019
FR09.03.2019
CH31.03.2019
LI31.03.2019
BG09.04.2019
NO09.04.2019
GR10.04.2019
IS09.05.2019
PT09.05.2019
Former [2021/31]AL09.01.2019
AT09.01.2019
CY09.01.2019
CZ09.01.2019
DK09.01.2019
EE09.01.2019
ES09.01.2019
FI09.01.2019
HR09.01.2019
IT09.01.2019
LT09.01.2019
LV09.01.2019
MC09.01.2019
NL09.01.2019
PL09.01.2019
RO09.01.2019
RS09.01.2019
SI09.01.2019
SK09.01.2019
SM09.01.2019
TR09.01.2019
IE08.03.2019
LU08.03.2019
MT08.03.2019
FR09.03.2019
CH31.03.2019
LI31.03.2019
BG09.04.2019
NO09.04.2019
GR10.04.2019
IS09.05.2019
PT09.05.2019
Former [2021/26]AL09.01.2019
AT09.01.2019
CY09.01.2019
CZ09.01.2019
DK09.01.2019
EE09.01.2019
ES09.01.2019
FI09.01.2019
HR09.01.2019
IT09.01.2019
LT09.01.2019
LV09.01.2019
MC09.01.2019
NL09.01.2019
PL09.01.2019
RO09.01.2019
RS09.01.2019
SI09.01.2019
SK09.01.2019
TR09.01.2019
IE08.03.2019
LU08.03.2019
MT08.03.2019
FR09.03.2019
CH31.03.2019
LI31.03.2019
BG09.04.2019
NO09.04.2019
GR10.04.2019
IS09.05.2019
PT09.05.2019
Former [2020/29]AL09.01.2019
AT09.01.2019
CZ09.01.2019
DK09.01.2019
EE09.01.2019
ES09.01.2019
FI09.01.2019
HR09.01.2019
IT09.01.2019
LT09.01.2019
LV09.01.2019
MC09.01.2019
NL09.01.2019
PL09.01.2019
RO09.01.2019
RS09.01.2019
SI09.01.2019
SK09.01.2019
TR09.01.2019
IE08.03.2019
LU08.03.2019
MT08.03.2019
FR09.03.2019
CH31.03.2019
LI31.03.2019
BG09.04.2019
NO09.04.2019
GR10.04.2019
IS09.05.2019
PT09.05.2019
Former [2020/17]AL09.01.2019
AT09.01.2019
CZ09.01.2019
DK09.01.2019
EE09.01.2019
ES09.01.2019
FI09.01.2019
HR09.01.2019
IT09.01.2019
LT09.01.2019
LV09.01.2019
MC09.01.2019
NL09.01.2019
PL09.01.2019
RO09.01.2019
RS09.01.2019
SI09.01.2019
SK09.01.2019
TR09.01.2019
IE08.03.2019
LU08.03.2019
FR09.03.2019
CH31.03.2019
LI31.03.2019
BG09.04.2019
NO09.04.2019
GR10.04.2019
IS09.05.2019
PT09.05.2019
Former [2020/11]AL09.01.2019
AT09.01.2019
CZ09.01.2019
DK09.01.2019
EE09.01.2019
ES09.01.2019
FI09.01.2019
HR09.01.2019
IT09.01.2019
LT09.01.2019
LV09.01.2019
MC09.01.2019
NL09.01.2019
PL09.01.2019
RO09.01.2019
RS09.01.2019
SI09.01.2019
SK09.01.2019
IE08.03.2019
LU08.03.2019
FR09.03.2019
CH31.03.2019
LI31.03.2019
BG09.04.2019
NO09.04.2019
GR10.04.2019
IS09.05.2019
PT09.05.2019
Former [2020/09]AL09.01.2019
AT09.01.2019
CZ09.01.2019
DK09.01.2019
EE09.01.2019
ES09.01.2019
FI09.01.2019
HR09.01.2019
IT09.01.2019
LT09.01.2019
LV09.01.2019
MC09.01.2019
NL09.01.2019
PL09.01.2019
RO09.01.2019
RS09.01.2019
SK09.01.2019
IE08.03.2019
LU08.03.2019
BG09.04.2019
NO09.04.2019
GR10.04.2019
IS09.05.2019
PT09.05.2019
Former [2020/01]AL09.01.2019
AT09.01.2019
CZ09.01.2019
DK09.01.2019
EE09.01.2019
ES09.01.2019
FI09.01.2019
HR09.01.2019
IT09.01.2019
LT09.01.2019
LV09.01.2019
MC09.01.2019
NL09.01.2019
PL09.01.2019
RO09.01.2019
RS09.01.2019
SK09.01.2019
LU08.03.2019
BG09.04.2019
NO09.04.2019
GR10.04.2019
IS09.05.2019
PT09.05.2019
Former [2019/49]AL09.01.2019
AT09.01.2019
CZ09.01.2019
DK09.01.2019
EE09.01.2019
ES09.01.2019
FI09.01.2019
HR09.01.2019
IT09.01.2019
LT09.01.2019
LV09.01.2019
MC09.01.2019
NL09.01.2019
PL09.01.2019
RO09.01.2019
RS09.01.2019
SK09.01.2019
BG09.04.2019
NO09.04.2019
GR10.04.2019
IS09.05.2019
PT09.05.2019
Former [2019/48]AT09.01.2019
DK09.01.2019
ES09.01.2019
FI09.01.2019
HR09.01.2019
IT09.01.2019
LT09.01.2019
LV09.01.2019
MC09.01.2019
NL09.01.2019
PL09.01.2019
RS09.01.2019
BG09.04.2019
NO09.04.2019
GR10.04.2019
IS09.05.2019
PT09.05.2019
Former [2019/46]AT09.01.2019
ES09.01.2019
FI09.01.2019
HR09.01.2019
IT09.01.2019
LT09.01.2019
LV09.01.2019
MC09.01.2019
NL09.01.2019
PL09.01.2019
RS09.01.2019
BG09.04.2019
NO09.04.2019
GR10.04.2019
IS09.05.2019
PT09.05.2019
Former [2019/39]ES09.01.2019
FI09.01.2019
HR09.01.2019
LT09.01.2019
LV09.01.2019
NL09.01.2019
PL09.01.2019
RS09.01.2019
BG09.04.2019
NO09.04.2019
GR10.04.2019
IS09.05.2019
PT09.05.2019
Former [2019/38]ES09.01.2019
FI09.01.2019
LT09.01.2019
NL09.01.2019
PL09.01.2019
BG09.04.2019
NO09.04.2019
GR10.04.2019
PT09.05.2019
Former [2019/37]ES09.01.2019
FI09.01.2019
LT09.01.2019
NL09.01.2019
PL09.01.2019
NO09.04.2019
GR10.04.2019
PT09.05.2019
Former [2019/35]ES09.01.2019
FI09.01.2019
LT09.01.2019
NL09.01.2019
PL09.01.2019
NO09.04.2019
PT09.05.2019
Former [2019/33]FI09.01.2019
LT09.01.2019
NL09.01.2019
NO09.04.2019
PT09.05.2019
Former [2019/30]NL09.01.2019
Cited inInternational search[XDI]WO2014031447  (DOW GLOBAL TECHNOLOGIES LLC [US]) [XD] 15 * page 10, line 28 - page 11, line 3; examples 1-3; claim 1 * [I] 1-14;
 [XDI]WO2014031446  (DOW GLOBAL TECHNOLOGIES LLC [US]) [XD] 15 * page 10, line 17; examples 1-5 * [I] 1-14;
 [XI]WO2014031418  (DOW GLOBAL TECHNOLOGIES LLC [US]) [X] 15 * page 16, lines 1-15; examples 1-8 * [I] 1-14;
 [XI]WO2014137789  (DOW GLOBAL TECHNOLOGIES LLC [US]) [X] 15 * page 12, line 22 - page 13, line 2 * * page 14, line 1; examples 1-4 *[I] 1-14
by applicantUS4226981
 US4316982
 US4365060
 EP0210917
 EP0219426
 EP1141029
 EP1423433
 WO2005115330
 WO2013148154
 WO2014031447
 WO2014031448
 WO2014031446
 WO2014137777
    - MCGINITY, JAMES W., Aqueous Polymeric Coatings for Pharmaceutical Dosage Forms, M. DEKKER, (1989), pages 105 - 113
    - G. BARTELMUS; R. KETTERER, Z. ANAL. CHEM., (1977), vol. 286, pages 161 - 190
    - "Hypromellose Acetate Succinate", UNITED STATES PHARMACOPIA AND NATIONAL FORMULARY, NF, vol. 29, pages 1548 - 1550
    - "Hypromellose", UNITED STATES PHARMACOPEIA AND NATIONAL FORMULARY, USP, vol. 35, pages 3467 - 3469
    - JOURNAL OF PHARMACEUTICAL AND BIOMEDICAL ANALYSIS, (2011), vol. 56, page 743
 WO2013US30394
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