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Extract from the Register of European Patents

EP About this file: EP4148733

EP4148733 - OPTICAL SYSTEM FOR HOLOGRAPHIC STORAGE AND DESIGN METHOD FOR FRESNEL LENS AND META LENS THEREOF [Right-click to bookmark this link]
StatusThe application has been withdrawn
Status updated on  15.09.2023
Database last updated on 03.09.2024
FormerRequest for examination was made
Status updated on  10.02.2023
Most recent event   Tooltip15.09.2023Withdrawal of applicationpublished on 18.10.2023  [2023/42]
Applicant(s)For all designated states
Amethystum Storage Technology Co., Ltd.
Guangzhou (Meizhou) Industry Transposition Park
Shejiang Town, Mei County
Meizhou, Guangdong 514700 / CN
[2023/11]
Inventor(s)01 / HU, Dejiao
Shejiang Town, Mei County Meizhou, 514700 / CN
02 / LIU, Yicheng
Shejiang Town, Mei County Meizhou, 514700 / CN
03 / TIAN, Jun
Shejiang Town, Mei County Meizhou, 514700 / CN
04 / TAO, Xiaoxiao
Shejiang Town, Mei County Meizhou, 514700 / CN
 [2023/11]
Representative(s)Puschmann Borchert Kaiser Klettner Patentanwälte Partnerschaft mbB
Bajuwarenring 21
82041 Oberhaching / DE
[2023/11]
Application number, filing date22190206.712.08.2022
[2023/11]
Priority number, dateCN20211092474012.08.2021         Original published format: CN202110924740
[2023/11]
Filing languageEN
Procedural languageEN
PublicationType: A1 Application with search report 
No.:EP4148733
Date:15.03.2023
Language:EN
[2023/11]
Search report(s)(Supplementary) European search report - dispatched on:EP13.02.2023
ClassificationIPC:G11B7/1374, G11B7/1378
[2023/11]
CPC:
G11B7/1374 (EP,US); G11B7/0065 (EP,KR,US); G02B1/002 (EP);
G11B7/083 (US); G11B7/128 (US); G11B7/1372 (KR);
G11B7/1376 (US); G11B7/1378 (EP); G11B2007/13722 (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 [2023/11]
Extension statesBANot yet paid
MENot yet paid
Validation statesKHNot yet paid
MANot yet paid
MDNot yet paid
TNNot yet paid
TitleGerman:OPTISCHES SYSTEM ZUR HOLOGRAPHISCHEN SPEICHERUNG UND ENTWURFSVERFAHREN FÜR FRESNEL-LINSEN UND METALINSEN DAFÜR[2023/11]
English:OPTICAL SYSTEM FOR HOLOGRAPHIC STORAGE AND DESIGN METHOD FOR FRESNEL LENS AND META LENS THEREOF[2023/11]
French:SYSTÈME OPTIQUE POUR STOCKAGE HOLOGRAPHIQUE ET PROCÉDÉ DE CONCEPTION D'UNE LENTILLE DE FRESNEL ET DE SA MÉTA-LENTILLE[2023/11]
Examination procedure01.09.2022Examination requested  [2023/11]
13.09.2023Application withdrawn by applicant  [2023/42]
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Documents cited:Search[XA]US2004212859  (TSUKAGOSHI TAKUYA [JP]) [X] 1-8 * paragraph [0023] - paragraph [0065]; figures 1-4 * [A] 9-12;
 [A]US2018274750  (BYRNES STEVE [US], et al) [A] 1-12* paragraph [0035] - paragraph [0178]; figures 1-21 *;
 [XA]US2020174163  (HAN SEUNGHOON [KR], et al) [X] 9-12 * paragraph [0071] - paragraph [0119]; figures 1-11 * [A] 1-8;
 [A]WO2021118794  (UNIV CALIFORNIA [US]) [A] 1-12 * paragraph [0004] - paragraph [0006] * * paragraph [0020] - paragraph [0042]; figures 1-12 *;
 [XA]US2021225400  (ZHENG MU [CN], et al) [X] 1-8 * paragraph [0056] - paragraph [0066]; figure 7 * [A] 9-12
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.