blank Quick help
blank Maintenance news

Scheduled maintenance

Regular maintenance outages:
between 05.00 and 05.15 hrs CET (Monday to Sunday).

Other outages
Availability

2022.02.11

More...
blank News flashes

News Flashes

New version of the European Patent Register – SPC proceedings information in the Unitary Patent Register.

2024-07-24

More...
blank Related links

Extract from the Register of European Patents

EP About this file: EP4389779

EP4389779 - POLYMER AND LIGHT CONTROL DEVICE [Right-click to bookmark this link]
StatusRequest for examination was made
Status updated on  24.05.2024
Database last updated on 13.11.2024
FormerThe international publication has been made
Status updated on  24.02.2023
Most recent event   Tooltip25.10.2024Change: Validation statespublished on 27.11.2024 [2024/48]
25.10.2024Change - extension statespublished on 27.11.2024 [2024/48]
Applicant(s)For all designated states
National Institute of Information and Communications Technology
4-2-1, Nukui-kitamachi
Koganei-shi
Tokyo 184-8795 / JP
[2024/26]
Inventor(s)01 / OTOMO, Akira
Koganei-shi, Tokyo 184-8795 / JP
02 / TANAKA, Kouichi
Koganei-shi, Tokyo 184-8795 / JP
03 / YAMADA, Toshiki
Koganei-shi, Tokyo 184-8795 / JP
04 / YAMADA, Chiyumi
Koganei-shi, Tokyo 184-8795 / JP
05 / KAMADA, Shun
Koganei-shi, Tokyo 184-8795 / JP
06 / UEDA, Rieko
Koganei-shi, Tokyo 184-8795 / JP
 [2024/26]
Representative(s)De Clercq & Partners
Edgard Gevaertdreef 10a
9830 Sint-Martens-Latem / BE
[2024/26]
Application number, filing date22858243.321.07.2022
[2024/26]
WO2022JP28374
Priority number, dateJP2021013457520.08.2021         Original published format: JP 2021134575
[2024/26]
Filing languageJA
Procedural languageEN
PublicationType: A1 Application with search report
No.:WO2023021921
Date:23.02.2023
Language:JA
[2023/08]
Type: A1 Application with search report 
No.:EP4389779
Date:26.06.2024
Language:EN
[2024/26]
Search report(s)International search report - published on:JP23.02.2023
ClassificationIPC:C08F8/00, C08F20/36, G02F1/061, G02F1/361
[2024/26]
CPC:
G02F1/3617 (EP); C08F220/14 (US); C08F220/1811 (EP);
C08F8/10 (EP); C08F8/30 (EP); G02B1/046 (US);
C08F2810/00 (US); G02F1/061 (EP) (-)
C-Set:
C08F220/1811, C08F220/36 (EP);
C08F8/10, C08F220/36 (EP);
C08F8/30, C08F220/36 (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 [2024/26]
TitleGerman:POLYMER UND LICHTSTEUERUNGSVORRICHTUNG[2024/26]
English:POLYMER AND LIGHT CONTROL DEVICE[2024/26]
French:POLYMÈRE ET DISPOSITIF DE COMMANDE DE LUMIÈRE[2024/26]
Entry into regional phase20.02.2024Translation filed 
20.02.2024National basic fee paid 
20.02.2024Search fee paid 
20.02.2024Designation fee(s) paid 
20.02.2024Examination fee paid 
Examination procedure20.02.2024Examination requested  [2024/26]
Fees paidRenewal fee
25.07.2024Renewal 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.
Cited inInternational search[A]JPH07165898  (AKZO NOBEL NV);
 [A]JPH11511866  (US NAVY [US]);
 [A]JP2004505299  ;
 [AX]CN103289070  (CHINESE ACAD TECH INST PHYSICS);
 [AX]CN103304721  (CHINESE ACAD TECH INST PHYSICS);
 [AX]CN104744896  (CHINESE ACAD TECH INST PHYSICS);
by applicantWO2011024774
 WO2018003842
 WO2019151318
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.