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Extract from the Register of European Patents

EP About this file: EP3784702

EP3784702 - METHOD FOR CLEANING A POLYMERIZATION REACTOR [Right-click to bookmark this link]
Former [2021/09]METHOD FOR CLEANING A POLYMERISATION REACTOR
[2021/30]
StatusPatent maintained as amended
Status updated on  30.08.2024
Database last updated on 19.10.2024
FormerThe patent has been granted
Status updated on  03.12.2021
FormerGrant of patent is intended
Status updated on  29.07.2021
FormerRequest for examination was made
Status updated on  29.01.2021
FormerThe international publication has been made
Status updated on  20.11.2020
Formerunknown
Status updated on  22.05.2019
Most recent event   Tooltip27.09.2024Lapse of the patent in a contracting state
New state(s): MT		published on 30.10.2024 [2024/44]
Applicant(s)For all designated states
Wacker Chemie AG
Gisela-Stein-Straße 1
81671 München / DE
[2024/40]
Former [2021/09]For all designated states
Wacker Chemie AG
Hanns-Seidel-Platz 4
81737 München / DE
Inventor(s)01 / WEITZEL, Hans-Peter
Sonnenstr. 8
84571 Reischach / DE
02 / BRAUNSPERGER, Robert
Saliterweg 1
84547 Emmerting / DE
 [2021/09]
Representative(s)Ege, Markus, et al
Wacker Chemie AG
Gisela-Stein-Straße 1
81671 München / DE
[2024/40]
Former [2021/09]Ege, Markus, et al
Wacker Chemie AG
Hanns-Seidel-Platz 4
81737 München / DE
Application number, filing date19723779.510.05.2019
[2021/09]
WO2019EP62055
Filing languageDE
Procedural languageDE
PublicationType: A1 Application with search report
No.:WO2020228927
Date:19.11.2020
Language:DE
[2020/47]
Type: A1 Application with search report 
No.:EP3784702
Date:03.03.2021
Language:DE
The application published by WIPO in one of the EPO official languages on 19.11.2020 takes the place of the publication of the European patent application.
[2021/09]
Type: B1 Patent specification 
No.:EP3784702
Date:05.01.2022
Language:DE
[2022/01]
Type: B2 New European patent specification 
No.:EP3784702
Date:02.10.2024
Language:DE
[2024/40]
Search report(s)International search report - published on:EP19.11.2020
ClassificationIPC:C08F2/00, C08J11/04, C08F218/08, C08F210/02, C08F2/20, C08F2/28, C08J11/08, C08F18/08, C08G85/00
[2024/16]
CPC:
C08G85/008 (EP); C08F2/008 (EP,US); C08F18/08 (EP);
C08F2/20 (EP); C08F2/24 (US); C08F2/28 (EP);
C08F210/02 (EP,US); C08F218/08 (EP,US); C08F6/16 (US);
C08F2/002 (US) (-)
C-Set:
C08F18/08, C08F2/008 (EP);
C08F18/08, C08F2/20 (EP);
C08F210/02, C08F2/008 (EP);
C08F210/02, C08F2/20 (EP);
C08F210/02, C08F2/28 (EP);
C08F218/08, C08F210/02 (EP);
C08F210/02, C08F218/08 (EP);
C08F210/02, C08F218/08, C08F6/16 (US)
(-)
Former IPC [2021/09]C08F2/00, C08J11/08, C08F2/28, C08F2/20, C08F210/02, C08F218/08, C08J11/04
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 [2021/09]
TitleGerman:VERFAHREN ZUR REINIGUNG EINES POLYMERISATIONSREAKTORS[2021/09]
English:METHOD FOR CLEANING A POLYMERIZATION REACTOR[2021/30]
French:PROCÉDÉ DE NETTOYAGE D'UN RÉACTEUR DE POLYMÉRISATION[2021/09]
Former [2021/09]METHOD FOR CLEANING A POLYMERISATION REACTOR
Entry into regional phase25.11.2020National basic fee paid 
25.11.2020Designation fee(s) paid 
25.11.2020Examination fee paid 
Examination procedure25.11.2020Examination requested  [2021/09]
25.11.2020Date on which the examining division has become responsible
30.07.2021Communication of intention to grant the patent
25.11.2021Fee for grant paid
25.11.2021Fee for publishing/printing paid
25.11.2021Receipt of the translation of the claim(s)
Opposition(s)Opponent(s)01  05.10.2022  29.02.2024  WITHDRAWN
Celanese International Corporation
222 West Las Colinas Boulevard, Suite 900N
Irving, TX 75039 / US
Opponent's representative
Simmons & Simmons LLP (Munich)
Lehel Carré
Gewürzmühlstraße 11
80538 Munich / DE
 [N/P]
Former [2024/15]
Opponent(s)01  05.10.2022  29.02.2024  WITHDRAWN
Celanese International Corporation
222 West Las Colinas Boulevard, Suite 900N
Irving, TX 75039 / US
Opponent's representative
Simmons & Simmons LLP (Munich)
Lehel Carré
Thierschplatz 6
80538 Munich / DE
Former [2024/03]
Opponent(s)01  05.10.2022  06.10.2022  ADMISSIBLE
Celanese International Corporation
222 West Las Colinas Boulevard, Suite 900N
Irving, TX 75039 / US
Opponent's representative
Simmons & Simmons LLP (Munich)
Lehel Carré
Thierschplatz 6
80538 Munich / DE
Former [2022/45]
Opponent(s)01  05.10.2022  06.10.2022  ADMISSIBLE
Celanese International Corporation
222 West Las Colinas Boulevard, Suite 900N
Irving, TX 75039 / US
Opponent's representative
Lahrtz, Fritz
Simmons & Simmons LLP
Prinzregentenstraße 68
81675 München / DE
19.10.2022Invitation to proprietor to file observations on the notice of opposition
17.02.2023Reply of patent proprietor to notice(s) of opposition
04.03.2024Cancellation of oral proceeding that was planned for 14.03.2024
14.03.2024Date of oral proceedings
22.03.2024Despatch of interlocutory decision in opposition
22.03.2024Legal effect of interlocutory decision in opposition
27.06.2024Despatch of communication that the patent will be maintained as amended
Fees paidRenewal fee
18.05.2021Renewal 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  TooltipHU10.05.2019
AL05.01.2022
CY05.01.2022
CZ05.01.2022
DK05.01.2022
EE05.01.2022
ES05.01.2022
FI05.01.2022
HR05.01.2022
IT05.01.2022
LT05.01.2022
LV05.01.2022
MC05.01.2022
MK05.01.2022
MT05.01.2022
PL05.01.2022
RO05.01.2022
RS05.01.2022
SI05.01.2022
SK05.01.2022
SM05.01.2022
TR05.01.2022
BG05.04.2022
NO05.04.2022
GR06.04.2022
IS05.05.2022
PT05.05.2022
IE10.05.2022
LU10.05.2022
BE31.05.2022
CH31.05.2022
FR31.05.2022
LI31.05.2022
GB10.05.2023
[2024/44]
Former [2024/29]HU10.05.2019
AL05.01.2022
CY05.01.2022
CZ05.01.2022
DK05.01.2022
EE05.01.2022
ES05.01.2022
FI05.01.2022
HR05.01.2022
IT05.01.2022
LT05.01.2022
LV05.01.2022
MC05.01.2022
MK05.01.2022
PL05.01.2022
RO05.01.2022
RS05.01.2022
SI05.01.2022
SK05.01.2022
SM05.01.2022
TR05.01.2022
BG05.04.2022
NO05.04.2022
GR06.04.2022
IS05.05.2022
PT05.05.2022
IE10.05.2022
LU10.05.2022
BE31.05.2022
CH31.05.2022
FR31.05.2022
LI31.05.2022
GB10.05.2023
Former [2024/25]HU10.05.2019
AL05.01.2022
CY05.01.2022
CZ05.01.2022
DK05.01.2022
EE05.01.2022
ES05.01.2022
FI05.01.2022
HR05.01.2022
IT05.01.2022
LT05.01.2022
LV05.01.2022
MC05.01.2022
MK05.01.2022
PL05.01.2022
RO05.01.2022
RS05.01.2022
SI05.01.2022
SK05.01.2022
SM05.01.2022
BG05.04.2022
NO05.04.2022
GR06.04.2022
IS05.05.2022
PT05.05.2022
IE10.05.2022
LU10.05.2022
BE31.05.2022
CH31.05.2022
FR31.05.2022
LI31.05.2022
GB10.05.2023
Former [2024/23]AL05.01.2022
CY05.01.2022
CZ05.01.2022
DK05.01.2022
EE05.01.2022
ES05.01.2022
FI05.01.2022
HR05.01.2022
IT05.01.2022
LT05.01.2022
LV05.01.2022
MC05.01.2022
MK05.01.2022
PL05.01.2022
RO05.01.2022
RS05.01.2022
SI05.01.2022
SK05.01.2022
SM05.01.2022
BG05.04.2022
NO05.04.2022
GR06.04.2022
IS05.05.2022
PT05.05.2022
IE10.05.2022
LU10.05.2022
BE31.05.2022
CH31.05.2022
FR31.05.2022
LI31.05.2022
GB10.05.2023
Former [2024/20]AL05.01.2022
CY05.01.2022
CZ05.01.2022
DK05.01.2022
EE05.01.2022
ES05.01.2022
FI05.01.2022
HR05.01.2022
IT05.01.2022
LT05.01.2022
LV05.01.2022
MC05.01.2022
PL05.01.2022
RO05.01.2022
RS05.01.2022
SI05.01.2022
SK05.01.2022
SM05.01.2022
BG05.04.2022
NO05.04.2022
GR06.04.2022
IS05.05.2022
PT05.05.2022
IE10.05.2022
LU10.05.2022
BE31.05.2022
CH31.05.2022
FR31.05.2022
LI31.05.2022
Former [2023/35]AL05.01.2022
CZ05.01.2022
DK05.01.2022
EE05.01.2022
ES05.01.2022
FI05.01.2022
HR05.01.2022
IT05.01.2022
LT05.01.2022
LV05.01.2022
MC05.01.2022
PL05.01.2022
RO05.01.2022
RS05.01.2022
SI05.01.2022
SK05.01.2022
SM05.01.2022
BG05.04.2022
NO05.04.2022
GR06.04.2022
IS05.05.2022
PT05.05.2022
IE10.05.2022
LU10.05.2022
BE31.05.2022
CH31.05.2022
FR31.05.2022
LI31.05.2022
Former [2023/26]AL05.01.2022
CZ05.01.2022
DK05.01.2022
EE05.01.2022
ES05.01.2022
FI05.01.2022
HR05.01.2022
LT05.01.2022
LV05.01.2022
MC05.01.2022
PL05.01.2022
RO05.01.2022
RS05.01.2022
SI05.01.2022
SK05.01.2022
SM05.01.2022
BG05.04.2022
NO05.04.2022
GR06.04.2022
IS05.05.2022
PT05.05.2022
IE10.05.2022
LU10.05.2022
BE31.05.2022
CH31.05.2022
FR31.05.2022
LI31.05.2022
Former [2023/22]AL05.01.2022
CZ05.01.2022
DK05.01.2022
EE05.01.2022
ES05.01.2022
FI05.01.2022
HR05.01.2022
LT05.01.2022
LV05.01.2022
MC05.01.2022
PL05.01.2022
RO05.01.2022
RS05.01.2022
SI05.01.2022
SK05.01.2022
SM05.01.2022
BG05.04.2022
NO05.04.2022
GR06.04.2022
IS05.05.2022
PT05.05.2022
IE10.05.2022
LU10.05.2022
CH31.05.2022
FR31.05.2022
LI31.05.2022
Former [2023/20]AL05.01.2022
CZ05.01.2022
DK05.01.2022
EE05.01.2022
ES05.01.2022
FI05.01.2022
HR05.01.2022
LT05.01.2022
LV05.01.2022
MC05.01.2022
PL05.01.2022
RO05.01.2022
RS05.01.2022
SI05.01.2022
SK05.01.2022
SM05.01.2022
BG05.04.2022
NO05.04.2022
GR06.04.2022
IS05.05.2022
PT05.05.2022
IE10.05.2022
LU10.05.2022
CH31.05.2022
LI31.05.2022
Former [2023/10]AL05.01.2022
CZ05.01.2022
DK05.01.2022
EE05.01.2022
ES05.01.2022
FI05.01.2022
HR05.01.2022
LT05.01.2022
LV05.01.2022
MC05.01.2022
PL05.01.2022
RO05.01.2022
RS05.01.2022
SI05.01.2022
SK05.01.2022
SM05.01.2022
BG05.04.2022
NO05.04.2022
GR06.04.2022
IS05.05.2022
PT05.05.2022
LU10.05.2022
CH31.05.2022
LI31.05.2022
Former [2023/09]AL05.01.2022
CZ05.01.2022
DK05.01.2022
EE05.01.2022
ES05.01.2022
FI05.01.2022
HR05.01.2022
LT05.01.2022
LV05.01.2022
MC05.01.2022
PL05.01.2022
RO05.01.2022
RS05.01.2022
SK05.01.2022
SM05.01.2022
BG05.04.2022
NO05.04.2022
GR06.04.2022
IS05.05.2022
PT05.05.2022
LU10.05.2022
CH31.05.2022
LI31.05.2022
Former [2023/08]AL05.01.2022
CZ05.01.2022
DK05.01.2022
EE05.01.2022
ES05.01.2022
FI05.01.2022
HR05.01.2022
LT05.01.2022
LV05.01.2022
MC05.01.2022
PL05.01.2022
RO05.01.2022
RS05.01.2022
SK05.01.2022
SM05.01.2022
BG05.04.2022
NO05.04.2022
GR06.04.2022
IS05.05.2022
PT05.05.2022
LU10.05.2022
Former [2023/06]AL05.01.2022
CZ05.01.2022
DK05.01.2022
EE05.01.2022
ES05.01.2022
FI05.01.2022
HR05.01.2022
LT05.01.2022
LV05.01.2022
MC05.01.2022
PL05.01.2022
RO05.01.2022
RS05.01.2022
SK05.01.2022
SM05.01.2022
BG05.04.2022
NO05.04.2022
GR06.04.2022
IS05.05.2022
PT05.05.2022
Former [2023/01]AL05.01.2022
CZ05.01.2022
DK05.01.2022
EE05.01.2022
ES05.01.2022
FI05.01.2022
HR05.01.2022
LT05.01.2022
LV05.01.2022
PL05.01.2022
RO05.01.2022
RS05.01.2022
SK05.01.2022
SM05.01.2022
BG05.04.2022
NO05.04.2022
GR06.04.2022
IS05.05.2022
PT05.05.2022
Former [2022/49]CZ05.01.2022
DK05.01.2022
EE05.01.2022
ES05.01.2022
FI05.01.2022
HR05.01.2022
LT05.01.2022
LV05.01.2022
PL05.01.2022
RO05.01.2022
RS05.01.2022
SK05.01.2022
SM05.01.2022
BG05.04.2022
NO05.04.2022
GR06.04.2022
IS05.05.2022
PT05.05.2022
Former [2022/48]CZ05.01.2022
DK05.01.2022
EE05.01.2022
ES05.01.2022
FI05.01.2022
HR05.01.2022
LT05.01.2022
LV05.01.2022
PL05.01.2022
RO05.01.2022
RS05.01.2022
SM05.01.2022
BG05.04.2022
NO05.04.2022
GR06.04.2022
IS05.05.2022
PT05.05.2022
Former [2022/47]DK05.01.2022
ES05.01.2022
FI05.01.2022
HR05.01.2022
LT05.01.2022
LV05.01.2022
PL05.01.2022
RO05.01.2022
RS05.01.2022
SM05.01.2022
BG05.04.2022
NO05.04.2022
GR06.04.2022
IS05.05.2022
PT05.05.2022
Former [2022/46]DK05.01.2022
ES05.01.2022
FI05.01.2022
HR05.01.2022
LT05.01.2022
LV05.01.2022
PL05.01.2022
RS05.01.2022
BG05.04.2022
NO05.04.2022
GR06.04.2022
IS05.05.2022
PT05.05.2022
Former [2022/42]ES05.01.2022
FI05.01.2022
HR05.01.2022
LT05.01.2022
LV05.01.2022
PL05.01.2022
RS05.01.2022
BG05.04.2022
NO05.04.2022
GR06.04.2022
IS05.05.2022
PT05.05.2022
Former [2022/39]ES05.01.2022
FI05.01.2022
HR05.01.2022
LT05.01.2022
LV05.01.2022
PL05.01.2022
RS05.01.2022
BG05.04.2022
NO05.04.2022
GR06.04.2022
PT05.05.2022
Former [2022/36]ES05.01.2022
HR05.01.2022
LT05.01.2022
LV05.01.2022
PL05.01.2022
RS05.01.2022
BG05.04.2022
NO05.04.2022
GR06.04.2022
PT05.05.2022
Former [2022/35]ES05.01.2022
HR05.01.2022
LT05.01.2022
RS05.01.2022
BG05.04.2022
NO05.04.2022
PT05.05.2022
Former [2022/34]ES05.01.2022
LT05.01.2022
NO05.04.2022
PT05.05.2022
Former [2022/33]LT05.01.2022
NO05.04.2022
Cited inInternational search[A]US5064917  (AMANO TADASHI [JP], et al);
 [A]DE19856590  (BASF AG [DE])
by applicantUS4038473
 EP0057433
 EP0152115
 EP0248681
 US4904309
 EP0633061
 WO9829186
 US6274690
 EP1230019
 US2006130870
 EP2658644
 EP2689838
 EP3256497
 EP3351612
OppositionEP0057433
 EP0248681
 US5633334
 EP0924229
 DE10126560
 US6722377
 US8193104
 EP1579050
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.