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Extract from the Register of European Patents

EP About this file: EP3731009

EP3731009 - LIQUID CRYSTAL CELL [Right-click to bookmark this link]
StatusNo opposition filed within time limit
Status updated on  06.10.2023
Database last updated on 19.07.2024
FormerThe patent has been granted
Status updated on  28.10.2022
FormerGrant of patent is intended
Status updated on  19.09.2022
FormerExamination is in progress
Status updated on  13.08.2021
FormerRequest for examination was made
Status updated on  25.09.2020
FormerThe international publication has been made
Status updated on  29.06.2019
Most recent event   Tooltip19.07.2024Lapse of the patent in a contracting state
New state(s): BG		published on 21.08.2024 [2024/34]
Applicant(s)For all designated states
LG CHEM, LTD.
128, Yeoui-daero
Yeongdeungpo-gu
Seoul 07336 / KR
[2020/44]
Inventor(s)01 / KIM, Deok Hwan
LG Chem Research Park, 188, Munji-ro, Yuseong-gu
Daejeon 34122 / KR
02 / LEE, Yeon Keun
LG Chem Research Park, 188, Munji-ro, Yuseong-gu
Daejeon 34122 / KR
03 / KIM, Jung Doo
LG Chem Research Park, 188, Munji-ro, Yuseong-gu
Daejeon 34122 / KR
04 / LEE, Jun Haeng
LG Chem Research Park, 188, Munji-ro, Yuseong-gu
Daejeon 34122 / KR
 [2020/44]
Representative(s)Goddar, Heinz J.
Boehmert & Boehmert
Anwaltspartnerschaft mbB
Pettenkoferstrasse 22
80336 München / DE
[2020/44]
Application number, filing date18893089.520.12.2018
[2020/44]
WO2018KR16315
Priority number, dateKR2017017810822.12.2017         Original published format: KR 20170178108
[2020/44]
Filing languageKO
Procedural languageEN
PublicationType: A1 Application with search report
No.:WO2019125005
Date:27.06.2019
Language:KO
[2019/26]
Type: A1 Application with search report 
No.:EP3731009
Date:28.10.2020
Language:EN
[2020/44]
Type: B1 Patent specification 
No.:EP3731009
Date:30.11.2022
Language:EN
[2022/48]
Search report(s)International search report - published on:KR27.06.2019
(Supplementary) European search report - dispatched on:EP28.10.2020
ClassificationIPC:G02F1/137, C09K19/02
[2020/44]
CPC:
G02F1/1375 (EP,US); G02F1/137 (KR); C09K19/02 (EP,KR);
G02F1/1337 (US); G02F1/13712 (EP,KR,US); G02F1/13725 (EP);
G02F1/133742 (EP,US); G02F2202/06 (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 [2020/44]
Extension statesBANot yet paid
MENot yet paid
Validation statesKHNot yet paid
MANot yet paid
MDNot yet paid
TNNot yet paid
TitleGerman:FLÜSSIGKRISTALLZELLE[2020/44]
English:LIQUID CRYSTAL CELL[2020/44]
French:CELLULE À CRISTAUX LIQUIDES[2020/44]
Entry into regional phase26.05.2020Translation filed 
26.05.2020National basic fee paid 
26.05.2020Search fee paid 
26.05.2020Designation fee(s) paid 
26.05.2020Examination fee paid 
Examination procedure26.05.2020Examination requested  [2020/44]
22.04.2021Amendment by applicant (claims and/or description)
16.08.2021Despatch of a communication from the examining division (Time limit: M04)
15.12.2021Reply to a communication from the examining division
20.09.2022Communication of intention to grant the patent
24.10.2022Fee for grant paid
24.10.2022Fee for publishing/printing paid
24.10.2022Receipt of the translation of the claim(s)
Opposition(s)31.08.2023No opposition filed within time limit [2023/45]
Fees paidRenewal fee
22.12.2020Renewal fee patent year 03
22.12.2021Renewal 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  TooltipHU20.12.2018
AL30.11.2022
AT30.11.2022
BG30.11.2022
CY30.11.2022
CZ30.11.2022
DK30.11.2022
EE30.11.2022
ES30.11.2022
FI30.11.2022
HR30.11.2022
IT30.11.2022
LT30.11.2022
LV30.11.2022
MC30.11.2022
MK30.11.2022
NL30.11.2022
PL30.11.2022
RO30.11.2022
RS30.11.2022
SE30.11.2022
SI30.11.2022
SK30.11.2022
SM30.11.2022
TR30.11.2022
IE20.12.2022
LU20.12.2022
BE31.12.2022
CH31.12.2022
LI31.12.2022
NO28.02.2023
GR01.03.2023
IS30.03.2023
PT31.03.2023
[2024/34]
Former [2024/29]HU20.12.2018
AL30.11.2022
AT30.11.2022
CY30.11.2022
CZ30.11.2022
DK30.11.2022
EE30.11.2022
ES30.11.2022
FI30.11.2022
HR30.11.2022
IT30.11.2022
LT30.11.2022
LV30.11.2022
MC30.11.2022
MK30.11.2022
NL30.11.2022
PL30.11.2022
RO30.11.2022
RS30.11.2022
SE30.11.2022
SI30.11.2022
SK30.11.2022
SM30.11.2022
TR30.11.2022
IE20.12.2022
LU20.12.2022
BE31.12.2022
CH31.12.2022
LI31.12.2022
NO28.02.2023
GR01.03.2023
IS30.03.2023
PT31.03.2023
Former [2024/27]HU20.12.2018
AL30.11.2022
AT30.11.2022
CY30.11.2022
CZ30.11.2022
DK30.11.2022
EE30.11.2022
ES30.11.2022
FI30.11.2022
HR30.11.2022
IT30.11.2022
LT30.11.2022
LV30.11.2022
MK30.11.2022
NL30.11.2022
PL30.11.2022
RO30.11.2022
RS30.11.2022
SE30.11.2022
SI30.11.2022
SK30.11.2022
SM30.11.2022
IE20.12.2022
LU20.12.2022
BE31.12.2022
CH31.12.2022
LI31.12.2022
NO28.02.2023
GR01.03.2023
IS30.03.2023
PT31.03.2023
Former [2024/26]HU20.12.2018
AL30.11.2022
AT30.11.2022
CY30.11.2022
CZ30.11.2022
DK30.11.2022
EE30.11.2022
ES30.11.2022
FI30.11.2022
HR30.11.2022
IT30.11.2022
LT30.11.2022
LV30.11.2022
NL30.11.2022
PL30.11.2022
RO30.11.2022
RS30.11.2022
SE30.11.2022
SI30.11.2022
SK30.11.2022
SM30.11.2022
IE20.12.2022
LU20.12.2022
BE31.12.2022
CH31.12.2022
LI31.12.2022
NO28.02.2023
GR01.03.2023
IS30.03.2023
PT31.03.2023
Former [2024/25]HU20.12.2018
AL30.11.2022
AT30.11.2022
CY30.11.2022
CZ30.11.2022
DK30.11.2022
EE30.11.2022
ES30.11.2022
FI30.11.2022
HR30.11.2022
LT30.11.2022
LV30.11.2022
NL30.11.2022
PL30.11.2022
RO30.11.2022
RS30.11.2022
SE30.11.2022
SI30.11.2022
SK30.11.2022
SM30.11.2022
IE20.12.2022
LU20.12.2022
BE31.12.2022
CH31.12.2022
LI31.12.2022
NO28.02.2023
GR01.03.2023
IS30.03.2023
PT31.03.2023
Former [2024/21]AL30.11.2022
AT30.11.2022
CY30.11.2022
CZ30.11.2022
DK30.11.2022
EE30.11.2022
ES30.11.2022
FI30.11.2022
HR30.11.2022
LT30.11.2022
LV30.11.2022
NL30.11.2022
PL30.11.2022
RO30.11.2022
RS30.11.2022
SE30.11.2022
SI30.11.2022
SK30.11.2022
SM30.11.2022
IE20.12.2022
LU20.12.2022
BE31.12.2022
CH31.12.2022
LI31.12.2022
NO28.02.2023
GR01.03.2023
IS30.03.2023
PT31.03.2023
Former [2023/51]AL30.11.2022
AT30.11.2022
CZ30.11.2022
DK30.11.2022
EE30.11.2022
ES30.11.2022
FI30.11.2022
HR30.11.2022
LT30.11.2022
LV30.11.2022
NL30.11.2022
PL30.11.2022
RO30.11.2022
RS30.11.2022
SE30.11.2022
SI30.11.2022
SK30.11.2022
SM30.11.2022
IE20.12.2022
LU20.12.2022
BE31.12.2022
CH31.12.2022
LI31.12.2022
NO28.02.2023
GR01.03.2023
IS30.03.2023
PT31.03.2023
Former [2023/49]AL30.11.2022
AT30.11.2022
CZ30.11.2022
DK30.11.2022
EE30.11.2022
ES30.11.2022
FI30.11.2022
HR30.11.2022
LT30.11.2022
LV30.11.2022
NL30.11.2022
PL30.11.2022
RO30.11.2022
RS30.11.2022
SE30.11.2022
SK30.11.2022
SM30.11.2022
IE20.12.2022
LU20.12.2022
BE31.12.2022
CH31.12.2022
LI31.12.2022
NO28.02.2023
GR01.03.2023
IS30.03.2023
PT31.03.2023
Former [2023/48]AL30.11.2022
AT30.11.2022
CZ30.11.2022
DK30.11.2022
EE30.11.2022
ES30.11.2022
FI30.11.2022
HR30.11.2022
LT30.11.2022
LV30.11.2022
NL30.11.2022
PL30.11.2022
RO30.11.2022
RS30.11.2022
SE30.11.2022
SK30.11.2022
SM30.11.2022
IE20.12.2022
LU20.12.2022
CH31.12.2022
LI31.12.2022
NO28.02.2023
GR01.03.2023
IS30.03.2023
PT31.03.2023
Former [2023/47]AL30.11.2022
AT30.11.2022
CZ30.11.2022
DK30.11.2022
EE30.11.2022
ES30.11.2022
FI30.11.2022
HR30.11.2022
LT30.11.2022
LV30.11.2022
NL30.11.2022
PL30.11.2022
RO30.11.2022
RS30.11.2022
SE30.11.2022
SK30.11.2022
SM30.11.2022
LU20.12.2022
CH31.12.2022
LI31.12.2022
NO28.02.2023
GR01.03.2023
IS30.03.2023
PT31.03.2023
Former [2023/38]AL30.11.2022
AT30.11.2022
CZ30.11.2022
DK30.11.2022
EE30.11.2022
ES30.11.2022
FI30.11.2022
HR30.11.2022
LT30.11.2022
LV30.11.2022
NL30.11.2022
PL30.11.2022
RO30.11.2022
RS30.11.2022
SE30.11.2022
SK30.11.2022
SM30.11.2022
LU20.12.2022
NO28.02.2023
GR01.03.2023
IS30.03.2023
PT31.03.2023
Former [2023/37]AL30.11.2022
AT30.11.2022
CZ30.11.2022
DK30.11.2022
EE30.11.2022
ES30.11.2022
FI30.11.2022
HR30.11.2022
LT30.11.2022
LV30.11.2022
NL30.11.2022
PL30.11.2022
RO30.11.2022
RS30.11.2022
SE30.11.2022
SM30.11.2022
NO28.02.2023
GR01.03.2023
IS30.03.2023
PT31.03.2023
Former [2023/35]AT30.11.2022
CZ30.11.2022
DK30.11.2022
EE30.11.2022
ES30.11.2022
FI30.11.2022
HR30.11.2022
LT30.11.2022
LV30.11.2022
NL30.11.2022
PL30.11.2022
RO30.11.2022
RS30.11.2022
SE30.11.2022
SM30.11.2022
NO28.02.2023
GR01.03.2023
IS30.03.2023
PT31.03.2023
Former [2023/34]DK30.11.2022
EE30.11.2022
ES30.11.2022
FI30.11.2022
HR30.11.2022
LT30.11.2022
LV30.11.2022
NL30.11.2022
PL30.11.2022
RS30.11.2022
SE30.11.2022
SM30.11.2022
NO28.02.2023
GR01.03.2023
IS30.03.2023
PT31.03.2023
Former [2023/33]DK30.11.2022
ES30.11.2022
FI30.11.2022
HR30.11.2022
LT30.11.2022
LV30.11.2022
NL30.11.2022
PL30.11.2022
RS30.11.2022
SE30.11.2022
SM30.11.2022
NO28.02.2023
GR01.03.2023
IS30.03.2023
PT31.03.2023
Former [2023/29]ES30.11.2022
FI30.11.2022
HR30.11.2022
LT30.11.2022
LV30.11.2022
NL30.11.2022
PL30.11.2022
RS30.11.2022
SE30.11.2022
NO28.02.2023
GR01.03.2023
IS30.03.2023
PT31.03.2023
Former [2023/25]ES30.11.2022
FI30.11.2022
HR30.11.2022
LT30.11.2022
LV30.11.2022
PL30.11.2022
RS30.11.2022
SE30.11.2022
NO28.02.2023
GR01.03.2023
IS30.03.2023
PT31.03.2023
Former [2023/23]ES30.11.2022
FI30.11.2022
LT30.11.2022
LV30.11.2022
SE30.11.2022
NO28.02.2023
GR01.03.2023
PT31.03.2023
Former [2023/22]ES30.11.2022
FI30.11.2022
LT30.11.2022
SE30.11.2022
NO28.02.2023
PT31.03.2023
Former [2023/20]LT30.11.2022
NO28.02.2023
Documents cited:Search[Y]KR20160117344  (LG CHEMICAL LTD [KR]) [Y] 12-14* paragraph [0063] *;
 [XYI]TWI609213B  (NATIONAL SUN YAT SEN UNIV [TW]) [X] 1-10,15 * figures 1-4 * * and the associated text passages * [Y] 12-14 [I] 11;
 [XPYI]US2018163460  (LIN TSUNG-HSIEN [TW], et al) [XP] 1-10,15 * figures 1-4 * * and the associated text passages * [Y] 12-14 [I] 11
International search[Y]JPH05150274  (SUMITOMO CHEMICAL CO) [Y] 1-15 * See paragraphs [0014] -[0020]; and figure 1. *;
 [A]JP2003149683  (TOSHIMA NAOKI, et al) [A] 1-15* See paragraph [0029]; claims 10-12, 15; and figure 2. *;
 [A]KR20160115428  (LG CHEMICAL LTD [KR]) [A] 1-15 * See claims 1, 3, 5-10, 14, 16-18: and figure 1. *;
 [Y]KR20160117344  (LG CHEMICAL LTD [KR]) [Y] 1-15 * See paragraphs [0034], [0061], [0066], [0075], [0089]-[0090], [0113]; claims 1, 7-9; and figure 1. *;
 [A]KR20170090236  (LG CHEMICAL LTD [KR]) [A] 1-15 * See claims 1, 3, 6-9, 11-17; and figures 1-2. *
by applicantKR20140077861
 KR20170178108
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.