Extract from the Register of European Patents

EP About this file: EP4014082

EP4014082 - SMALL FORM FACTOR 4-MIRROR BASED IMAGING SYSTEMS [Right-click to bookmark this link]
StatusNo opposition filed within time limit
Status updated on  19.09.2025
Database last updated on 21.03.2026
FormerThe patent has been granted
Status updated on  11.10.2024
FormerGrant of patent is intended
Status updated on  06.06.2024
FormerRequest for examination was made
Status updated on  20.05.2022
FormerThe international publication has been made
Status updated on  19.02.2021
Most recent event   Tooltip19.09.2025No opposition filed within time limitpublished on 22.10.2025  [2025/43]
Applicant(s)For all designated states
CSO CO. LTD.
5-34, Jijok-ro 148 beon-gil
Yuseong-gu
Daejeon 34074 / KR
[2024/46]
Former [2024/01]For all designated states
CSO CO. LTD.
5-34, Jirok-ro 148 beon-gil
Yuseong-gu
Daejeon, 34074 / KR
Former [2023/01]For all designated states
Choi, Youngwan
13701 Marina Pointe Dr, 435
Marina del Rey CA 90292 / US
Former [2022/25]For all designated states
Choi, Youngwan
3644 Overland Ave. 417
Los Angeles CA 90034 / US
Inventor(s)01 / Choi, Youngwan
13701 Marina Pointe Dr, No. 435
Marina del Rey, CA 90292 / US
 [2024/27]
Former [2022/25]01 / see applicant
...
Representative(s)Ström & Gulliksson AB
Box 5275
102 46 Stockholm / SE
[2022/25]
Application number, filing date20851763.110.08.2020
[2022/25]
WO2020US45639
Priority number, dateUS201962885296P11.08.2019         Original published format: US 201962885296 P
[2022/25]
Filing languageEN
Procedural languageEN
PublicationType: A1 Application with search report
No.:WO2021030277
Date:18.02.2021
Language:EN
[2021/07]
Type: A1 Application with search report 
No.:EP4014082
Date:22.06.2022
Language:EN
The application published by WIPO in one of the EPO official languages on 18.02.2021 takes the place of the publication of the European patent application.
[2022/25]
Type: B1 Patent specification 
No.:EP4014082
Date:13.11.2024
Language:EN
[2024/46]
Search report(s)International search report - published on:US18.02.2021
(Supplementary) European search report - dispatched on:EP02.10.2023
ClassificationIPC:G02B17/06, G03B17/17
[2024/25]
CPC:
G02B17/0657 (EP,KR,US); G02B17/0663 (CN); G02B17/023 (CN,KR,US);
G03B17/17 (EP)
Former IPC [2023/44]G02B17/06, G02B11/20
Former IPC [2022/25]G02B11/20
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 [2022/25]  
Extension statesBANot yet paid
MENot yet paid
Validation statesKHNot yet paid
MANot yet paid
MDNot yet paid
TNNot yet paid
TitleGerman:ABBILDUNGSSYSTEME BASIEREND AUF VIER SPIEGELN MIT GERINGEM FORMFAKTOR[2022/25]
English:SMALL FORM FACTOR 4-MIRROR BASED IMAGING SYSTEMS[2022/25]
French:SYSTÈMES D'IMAGERIE À BASE DE QUATRE MIROIRS À FAIBLE FACTEUR DE FORME[2022/25]
Entry into regional phase01.02.2022National basic fee paid 
01.02.2022Search fee paid 
01.02.2022Designation fee(s) paid 
01.02.2022Examination fee paid 
Examination procedure09.06.2021Request for preliminary examination filed
International Preliminary Examining Authority: US
01.02.2022Examination requested  [2022/25]
19.03.2024Amendment by applicant (claims and/or description)
19.03.2024Date on which the examining division has become responsible
07.06.2024Communication of intention to grant the patent
04.10.2024Fee for grant paid
04.10.2024Fee for publishing/printing paid
04.10.2024Receipt of the translation of the claim(s)
Divisional application(s)EP24209020.7  / EP4474900
Opposition(s)14.08.2025No opposition filed within time limit [2025/43]
Fees paidRenewal fee
26.10.2022Renewal fee patent year 03
15.08.2023Renewal fee patent year 04
27.08.2024Renewal fee patent year 05
Penalty fee
Additional fee for renewal fee
31.08.202203   M06   Fee paid on   26.10.2022
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Lapses during opposition  TooltipCZ13.11.2024
ES13.11.2024
HR13.11.2024
PL13.11.2024
SK13.11.2024
SM13.11.2024
NO13.02.2025
RS13.02.2025
GR14.02.2025
IS13.03.2025
[2025/36]
Former [2025/32]ES13.11.2024
HR13.11.2024
PL13.11.2024
SM13.11.2024
NO13.02.2025
RS13.02.2025
GR14.02.2025
IS13.03.2025
Former [2025/23]ES13.11.2024
HR13.11.2024
PL13.11.2024
NO13.02.2025
RS13.02.2025
GR14.02.2025
IS13.03.2025
Former [2025/22]ES13.11.2024
HR13.11.2024
NO13.02.2025
GR14.02.2025
IS13.03.2025
Former [2025/21]ES13.11.2024
HR13.11.2024
IS13.03.2025
Documents cited:Search[A] EP3404463  (THALES SA et al.) [A] 1-19 * figure 5 *
 [XI] US2016258878  (ZHANG SHIYU et al.) [X] 1,3,5,9,12 * figure 6; claim 1 *[I] 4,6-8,13-19
 [XI] CN101782680  (XI AN OPTICS PRECISION MECH et al.) [X] 1 * paragraph [0064]; figure 7A; table 7 *[I] 3-9,12-19
 [I] US2015028212  (WRIGHT RICHARD J et al.) [I] 1-9,12-19 * figure 1; claim 1 *
 [A] RU2615162  (OTKRYTOE AKTSIONERNOE OBSHCHESTVO ROSTOVSKIJ OPTIKO-MEKHANICHESKIJ ZAVOD et al.) [A] 1-19 * figure 2 *
International search[YA] US2011176205  (SHAW WILLIAM E et al.) [Y] 1,2, 12, 19 * entire document, especially Fig. 2a-2b and 3, para [0003], [0014], [0023], [0024], [0026], [0030] *[A] 3-11, 13-18, 20
 [YA] US2009009897  (HOLOTA WOLFGANG et al.) [Y] 1, 2, 12, 19 * entire document, especially para [0025], [0035] *[A] 3-11, 13-18, 20
by applicantUS201962885296
 EP3404463
 US2016258878
 CN101782680
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