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

Italy joins the Federated Register

Click here for more information on the Federated Register.

2025-06-12

More...
blank Related links

Release notes
European Patent Register Assistant
European Patent Register User Manual
European Patent Register – pocket guide
FAQ - European Patent Register
Federated Register (Flyer)
Global Dossier (Flyer)
Register events
Deep link coverage
Federated Register content
The Patent Information Tour
Fair use charter

Extract from the Register of European Patents

EP About this file: EP4478148

EP4478148 - OPTICAL COMPUTING DEVICE AND COMPUTING METHOD [Right-click to bookmark this link]
StatusRequest for examination was made
Status updated on  15.11.2024
Database last updated on 28.03.2026
FormerThe international publication has been made
Status updated on  07.10.2023
Most recent event   Tooltip30.10.2025Amendment by applicant 
Applicant(s)For all designated states
Huawei Technologies Co., Ltd.
Huawei Administration Building
Bantian
Longgang District
Shenzhen, Guangdong 518129 / CN
[2024/51]
Inventor(s)01 / YANG, Jiamiao
Shanghai 200240 / CN
02 / LI, Jingwei
Shenzhen, Guangdong 518129 / CN
03 / SHAO, Rongjun
Shanghai 200240 / CN
04 / DONG, Xiaowen
Shenzhen, Guangdong 518129 / CN
05 / DING, Chunxu
Shanghai 200240 / CN
 [2024/51]
Representative(s)Goddar, Heinz J., et al
Boehmert & Boehmert
Anwaltspartnerschaft mbB
Pettenkoferstrasse 22
80336 München / DE
[2024/51]
Application number, filing date22934598.806.07.2022
[2024/51]
WO2022CN104229
Priority number, dateCN20221034934001.04.2022         Original published format: CN202210349340
[2024/51]
Filing languageZH
Procedural languageEN
PublicationType: A1 Application with search report
No.:WO2023184776
Date:05.10.2023
Language:ZH
[2023/40]
Type: A1 Application with search report 
No.:EP4478148
Date:18.12.2024
Language:EN
[2024/51]
Search report(s)International search report - published on:CN05.10.2023
(Supplementary) European search report - dispatched on:EP15.05.2025
ClassificationIPC:G06E3/00, G06N3/067, G06N3/08
[2024/51]
CPC:
G06N3/08 (EP,CN); G06E3/005 (EP,CN); G06E1/00 (US);
G06E3/00 (EP); G06E3/008 (EP,CN); G06N3/0675 (EP,CN)
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 [2024/51]
TitleGerman:OPTISCHE BERECHNUNGSVORRICHTUNG UND BERECHNUNGSVERFAHREN[2024/51]
English:OPTICAL COMPUTING DEVICE AND COMPUTING METHOD[2024/51]
French:DISPOSITIF DE CALCUL OPTIQUE ET PROCÉDÉ DE CALCUL[2024/51]
Entry into regional phase09.09.2024Translation filed 
09.09.2024National basic fee paid 
09.09.2024Search fee paid 
09.09.2024Designation fee(s) paid 
09.09.2024Examination fee paid 
Examination procedure09.09.2024Examination requested  [2024/51]
28.10.2025Amendment by applicant (claims and/or description)
28.10.2025Date on which the examining division has become responsible
Fees paidRenewal fee
09.09.2024Renewal fee patent year 03
31.07.2025Renewal 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.
Documents cited:Search[XI] US2020242472  (SHEN YICHEN et al.)
 [A] CN113448077  (UNIV JINAN et al.)
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.