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Extract from the Register of European Patents

EP About this file: EP4285590

EP4285590 - IMAGE ENHANCEMENT VIA GLOBAL AND LOCAL RESHAPING [Right-click to bookmark this link]
StatusNo opposition filed within time limit
Status updated on  01.01.2026
Database last updated on 26.03.2026
FormerThe patent has been granted
Status updated on  24.01.2025
FormerGrant of patent is intended
Status updated on  29.09.2024
FormerRequest for examination was made
Status updated on  03.11.2023
FormerThe international publication has been made
Status updated on  05.08.2022
Formerunknown
Status updated on  23.02.2022
Most recent event   Tooltip01.01.2026No opposition filed within time limitpublished on 04.02.2026  [2026/06]
Applicant(s)For all designated states
Dolby Laboratories Licensing Corporation
1275 Market Street
San Francisco, CA 94103 / US
[2025/09]
Former [2023/49]For all designated states
Dolby Laboratories Licensing Corporation
1275 Market Street
San Francisco, CA 94103 / US
Inventor(s)01 / SU, Guan-Ming
San Francisco, California 94103 / US
02 / KADU, Harshad
Santa Clara, California 95054 / US
03 / KLITTMARK, Per Jonas Andreas
San Francisco, 94103 / US
04 / CHEN, Tao
San Francisco, California 94103 / US
 [2023/49]
Representative(s)Dolby International AB Patent Group Europe
77 Sir John Rogerson's Quay
Block C
Grand Canal Docklands
Dublin, D02 VK60 / IE
[2025/09]
Former [2023/49]Lind Edlund Kenamets Intellectual Property AB
Kungsportsavenyn 25
411 36 Göteborg / SE
Application number, filing date22704468.226.01.2022
[2023/49]
WO2022US13941
Priority number, dateEP2021015372227.01.2021         Original published format: EP 21153722
US202163142270P27.01.2021         Original published format: US 202163142270 P
[2023/49]
Filing languageEN
Procedural languageEN
PublicationType: A1 Application with search report
No.:WO2022164929
Date:04.08.2022
Language:EN
[2022/31]
Type: A1 Application with search report 
No.:EP4285590
Date:06.12.2023
Language:EN
The application published by WIPO in one of the EPO official languages on 04.08.2022 takes the place of the publication of the European patent application.
[2023/49]
Type: B1 Patent specification 
No.:EP4285590
Date:26.02.2025
Language:EN
[2025/09]
Search report(s)International search report - published on:EP04.08.2022
ClassificationIPC:H04N19/117, H04N19/154, H04N19/182, H04N19/186, H04N19/98
[2023/49]
CPC:
H04N19/117 (EP); G06T5/90 (US); G06V10/60 (US);
H04N19/154 (EP); H04N19/182 (EP); H04N19/186 (EP);
H04N19/98 (EP); G06T2207/20208 (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 [2023/49]  
Extension statesBANot yet paid
MENot yet paid
Validation statesKHNot yet paid
MANot yet paid
MDNot yet paid
TNNot yet paid
TitleGerman:BILDVERBESSERUNG DURCH GLOBALE UND LOKALE UMFORMUNG[2023/49]
English:IMAGE ENHANCEMENT VIA GLOBAL AND LOCAL RESHAPING[2023/49]
French:AMÉLIORATION DE L'IMAGE PAR REMODELAGE GLOBAL ET LOCAL[2024/43]
Former [2023/49]AMÉLIORATION D'IMAGE PAR REMISE EN FORME GLOBALE ET LOCALE
Entry into regional phase28.07.2023National basic fee paid 
28.07.2023Designation fee(s) paid 
28.07.2023Examination fee paid 
Examination procedure28.07.2023Examination requested  [2023/49]
28.07.2023Date on which the examining division has become responsible
19.02.2024Amendment by applicant (claims and/or description)
30.09.2024Communication of intention to grant the patent
15.01.2025Fee for grant paid
15.01.2025Fee for publishing/printing paid
15.01.2025Receipt of the translation of the claim(s)
Opposition(s)27.11.2025No opposition filed within time limit [2026/06]
Fees paidRenewal fee
23.01.2024Renewal fee patent year 03
21.01.2025Renewal 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  TooltipCZ26.02.2025
ES26.02.2025
HR26.02.2025
PL26.02.2025
SK26.02.2025
SM26.02.2025
NO26.05.2025
RS26.05.2025
GR27.05.2025
IS26.06.2025
[2025/49]
Former [2025/48]CZ26.02.2025
ES26.02.2025
HR26.02.2025
PL26.02.2025
SM26.02.2025
NO26.05.2025
RS26.05.2025
GR27.05.2025
IS26.06.2025
Former [2025/46]ES26.02.2025
HR26.02.2025
PL26.02.2025
SM26.02.2025
NO26.05.2025
RS26.05.2025
GR27.05.2025
IS26.06.2025
Former [2025/35]ES26.02.2025
HR26.02.2025
PL26.02.2025
NO26.05.2025
RS26.05.2025
GR27.05.2025
IS26.06.2025
Former [2025/34]ES26.02.2025
HR26.02.2025
PL26.02.2025
NO26.05.2025
RS26.05.2025
IS26.06.2025
Former [2025/33]ES26.02.2025
PL26.02.2025
RS26.05.2025
Cited inInternational search[YDA] WO2020117603  (DOLBY LABORATORIES LICENSING CORP et al.)
 [YA] WO2018005705  (DOLBY LABORATORIES LICENSING CORP et al.)
 [YA] WO2020072651  (DOLBY LABORATORIES LICENSING CORP et al.)
by applicantUS201562136402
 US2018020224
 US2019031620
 US2019063796
 WO2020117603
 US196362630130
 US200762630138
 US199962630866
 US8811490
 US201962908770
 US200962630046
 US63086699
 US203762630619
   "Reference electro-optical transfer function for flat panel displays used in HDTV studio production", ITU REC. ITU-R BT. 1886, March 2011 (2011-03-01)
   "High Dynamic Range EOTF of Mastering Reference Displays", SMPTE ST 2084:2014
   "Image parameter values for high dynamic range television for use in production and international programme exchange", SMPTE 2084 AND REC. ITU-R BT.2100, June 2017 (2017-06-01)
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.