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Extract from the Register of European Patents

EP About this file: EP4052372

EP4052372 - IMPROVEMENTS TO A CIRCUIT AND DEVICE INCLUDING A TRANSISTOR AND DIODE [Right-click to bookmark this link]
StatusNo opposition filed within time limit
Status updated on  26.07.2024
Database last updated on 21.03.2026
FormerThe patent has been granted
Status updated on  18.08.2023
FormerGrant of patent is intended
Status updated on  09.05.2023
FormerRequest for examination was made
Status updated on  05.08.2022
FormerThe international publication has been made
Status updated on  08.05.2021
Formerunknown
Status updated on  25.12.2020
Most recent event   Tooltip26.12.2025Lapse of the patent in a contracting state
New state(s): TR		published on 28.01.2026  [2026/05]
Applicant(s)For all designated states
Search for the Next Ltd
Ingenuity Centre
University of Nottingham Innovation Park
Triumph Road
Nottingham NG7 2TU / GB
[2022/36]
Inventor(s)01 / SUMMERLAND, David
c/o Search for the Next Ltd
Ingenuity Centre
University of Nottingham
Innovation Park
Nottingham, Notinghamshire NG7 2TU / GB
02 / KNIGHT, Luke
c/o Search for the Next Ltd
Ingenuity Centre
University of Nottingham
Innovation Park
Nottingham, Notinghamshire NG7 2TU / GB
03 / LIGHT, Roger
c/o Search for the Next Ltd
Ingenuity Centre
University of Nottingham
Innovation Park
Nottingham, Notinghamshire NG7 2TU / GB
 [2023/38]
Former [2022/36]01 / SUMMERLAND, David
c/o Search for the Next Ltd Ingenuity Centre
University of
Nottingham Innovation Park Nottingham, Notinghamshire NG7 2TU / GB
02 / KNIGHT, Luke
c/o Search for the Next Ltd Ingenuity Centre
University of
Nottingham Innovation Park Nottingham, Notinghamshire NG7 2TU / GB
03 / LIGHT, Roger
c/o Search for the Next Ltd Ingenuity Centre
University of
Nottingham Innovation Park Nottingham, Notinghamshire NG7 2TU / GB
Representative(s)Tolfree, Adam Joseph Benjamin, et al
Tolfree Patents & Trademarks
Toll Drove
Manea, Cambridgeshire PE15 0JX / GB
[2022/36]
Application number, filing date20825152.002.11.2020
[2022/36]
WO2020GB00091
Priority number, dateGB2019001595401.11.2019         Original published format: GB 201915954
[2022/36]
Filing languageEN
Procedural languageEN
PublicationType: A1 Application with search report
No.:WO2021084216
Date:06.05.2021
Language:EN
[2021/18]
Type: A1 Application with search report 
No.:EP4052372
Date:07.09.2022
Language:EN
The application published by WIPO in one of the EPO official languages on 06.05.2021 takes the place of the publication of the European patent application.
[2022/36]
Type: B1 Patent specification 
No.:EP4052372
Date:20.09.2023
Language:EN
[2023/38]
Search report(s)International search report - published on:EP06.05.2021
ClassificationIPC:H03K17/60, H03K17/74
[2022/36]
CPC:
H03K17/74 (EP); H03K17/60 (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 [2022/36]  
Extension statesBANot yet paid
MENot yet paid
Validation statesKHNot yet paid
MANot yet paid
MDNot yet paid
TNNot yet paid
TitleGerman:VERBESSERUNGEN AN EINER SCHALTUNG UND VORRICHTUNG MIT EINEM TRANSISTOR UND EINER DIODE[2022/36]
English:IMPROVEMENTS TO A CIRCUIT AND DEVICE INCLUDING A TRANSISTOR AND DIODE[2022/36]
French:PERFECTIONNEMENTS APPORTÉS À UN CIRCUIT ET À UN DISPOSITIF COMPRENANT UN TRANSISTOR ET UNE DIODE[2022/36]
Entry into regional phase01.06.2022National basic fee paid 
01.06.2022Designation fee(s) paid 
01.06.2022Examination fee paid 
Examination procedure01.06.2022Examination requested  [2022/36]
01.06.2022Date on which the examining division has become responsible
15.12.2022Amendment by applicant (claims and/or description)
10.05.2023Communication of intention to grant the patent
14.08.2023Fee for grant paid
14.08.2023Fee for publishing/printing paid
14.08.2023Receipt of the translation of the claim(s)
Opposition(s)21.06.2024No opposition filed within time limit [2024/35]
Fees paidRenewal fee
30.11.2022Renewal 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.
Lapses during opposition  TooltipCY02.11.2020
HU02.11.2020
CZ20.09.2023
ES20.09.2023
HR20.09.2023
MC20.09.2023
PL20.09.2023
RO20.09.2023
RS20.09.2023
SK20.09.2023
SM20.09.2023
TR20.09.2023
CH30.11.2023
NO20.12.2023
GR21.12.2023
IS20.01.2024
[2026/05]
Former [2025/39]CY02.11.2020
HU02.11.2020
CZ20.09.2023
ES20.09.2023
HR20.09.2023
MC20.09.2023
PL20.09.2023
RO20.09.2023
RS20.09.2023
SK20.09.2023
SM20.09.2023
CH30.11.2023
NO20.12.2023
GR21.12.2023
IS20.01.2024
Former [2025/36]CY02.11.2020
CZ20.09.2023
ES20.09.2023
HR20.09.2023
MC20.09.2023
PL20.09.2023
RO20.09.2023
RS20.09.2023
SK20.09.2023
SM20.09.2023
CH30.11.2023
NO20.12.2023
GR21.12.2023
IS20.01.2024
Former [2024/35]CZ20.09.2023
ES20.09.2023
HR20.09.2023
MC20.09.2023
PL20.09.2023
RO20.09.2023
RS20.09.2023
SK20.09.2023
SM20.09.2023
CH30.11.2023
NO20.12.2023
GR21.12.2023
IS20.01.2024
Former [2024/32]CZ20.09.2023
ES20.09.2023
HR20.09.2023
MC20.09.2023
PL20.09.2023
RO20.09.2023
RS20.09.2023
SK20.09.2023
SM20.09.2023
NO20.12.2023
GR21.12.2023
IS20.01.2024
Former [2024/27]CZ20.09.2023
ES20.09.2023
HR20.09.2023
PL20.09.2023
RO20.09.2023
RS20.09.2023
SK20.09.2023
SM20.09.2023
NO20.12.2023
GR21.12.2023
IS20.01.2024
Former [2024/23]CZ20.09.2023
ES20.09.2023
HR20.09.2023
RO20.09.2023
RS20.09.2023
SK20.09.2023
SM20.09.2023
NO20.12.2023
GR21.12.2023
IS20.01.2024
Former [2024/20]HR20.09.2023
RS20.09.2023
SM20.09.2023
NO20.12.2023
GR21.12.2023
IS20.01.2024
Former [2024/11]HR20.09.2023
RS20.09.2023
NO20.12.2023
GR21.12.2023
Former [2024/08]NO20.12.2023
GR21.12.2023
Cited inInternational search[I] US4668875  (MIYAZAKI MASAAKI et al.) [I] 1-18 * figure 1 *
 [A] EP0430063  (THOMSON CONSUMER ELECTRONICS et al.) [A] 1-18 * figure 1 *
 [I]   "Lessons In Electric Circuits, Volume IV - Digital", 1 November 2007, article TONY R. KUPHALDT: "Lessons In Electric Circuits, Volume IV - Digital", XP055232715 [I] 1-18 * pages 33-45 *
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.