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Extract from the Register of European Patents

EP About this file: EP3776671

EP3776671 - NITRIDE BASED LIGHT-EMITTING DEVICE [Right-click to bookmark this link]
Former [2021/07]HETEROGENEOUS TUNNELING JUNCTIONS FOR HOLE INJECTION IN NITRIDE BASED LIGHT-EMITTING DEVICES
[2023/17]
StatusNo opposition filed within time limit
Status updated on  02.08.2024
Database last updated on 31.08.2024
FormerThe patent has been granted
Status updated on  25.08.2023
FormerGrant of patent is intended
Status updated on  10.04.2023
FormerRequest for examination was made
Status updated on  15.01.2021
FormerThe international publication has been made
Status updated on  12.10.2019
Most recent event   Tooltip02.08.2024No opposition filed within time limitpublished on 04.09.2024 [2024/36]
Applicant(s)For all designated states
Wisconsin Alumni Research Foundation
614 Walnut Street
Madison, WI 53726 / US
[2023/39]
Former [2021/07]For all designated states
Wisconsin Alumni Research Foundation
614 Walnut Street
Madison, WI 53726 / US
Inventor(s)01 / MA, Zhenqiang
5520 Sandhill Dr.
Middleton, Wisconsin 53562 / US
02 / LIU, Dong
38025 Heritage Common
Apt. 261
Fremont, CA 94536 / US
 [2021/08]
Former [2021/07]01 / MA, Zhenqiang
5520 Sandhill Dr.
Middleton, Wisconsin 53562 / US
02 / LIU, Dong
816 Eagle Heights, Apt. D
Madison, Wisconsin 53705 / US
Representative(s)Hancox, Jonathan Christopher
Venner Shipley LLP
Windsor House
6-10 Mount Ephraim Road
Tunbridge Wells, Kent TN1 1EE / GB
[2023/39]
Former [2021/07]Brookes IP
Windsor House
6-10 Mount Ephraim Road
Tunbridge Wells, Kent TN1 1EE / GB
Application number, filing date19782035.003.04.2019
[2021/07]
WO2019US25491
Priority number, dateUS20181594594705.04.2018         Original published format: US201815945947
[2021/07]
Filing languageEN
Procedural languageEN
PublicationType: A1 Application with search report
No.:WO2019195359
Date:10.10.2019
Language:EN
[2019/41]
Type: A1 Application with search report 
No.:EP3776671
Date:17.02.2021
Language:EN
The application published by WIPO in one of the EPO official languages on 10.10.2019 takes the place of the publication of the European patent application.
[2021/07]
Type: B1 Patent specification 
No.:EP3776671
Date:27.09.2023
Language:EN
[2023/39]
Search report(s)International search report - published on:KR10.10.2019
(Supplementary) European search report - dispatched on:EP18.05.2021
ClassificationIPC:H01L33/00, H01L33/04, H01L33/32, H01L33/16, H01L33/36, H01L33/06
[2021/24]
CPC:
H01L33/06 (EP,US); H01L33/002 (KR); H01L33/0008 (KR);
H01L33/0012 (US); H01L33/005 (US); H01L33/04 (KR);
H01L33/14 (US); H01L33/16 (EP,KR,US); H01L33/26 (US);
H01L33/32 (EP,KR,US); H01L33/36 (KR); H01L33/44 (US);
H01L2933/0016 (US); H01L33/20 (EP,US); H01L33/22 (US);
H01L33/40 (US) (-)
Former IPC [2021/07]H01L33/00, H01L33/04, H01L33/32, H01L33/16, H01L33/36
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 [2021/07]
Extension statesBANot yet paid
MENot yet paid
Validation statesKHNot yet paid
MANot yet paid
MDNot yet paid
TNNot yet paid
TitleGerman:NITRID-BASIERTE LICHTEMITTIERENDE VORRICHTUNG[2023/17]
English:NITRIDE BASED LIGHT-EMITTING DEVICE[2023/17]
French:DISPOSITIF ÉMETTANT DE LA LUMIÈRE À BASE DE NITRURE[2023/17]
Former [2021/07]HETEROGENE TUNNELÜBERGÄNGE ZUR LOCHINJEKTION IN NITRID-BASIERTEN LICHTEMITTIERENDEN VORRICHTUNGEN
Former [2021/07]HETEROGENEOUS TUNNELING JUNCTIONS FOR HOLE INJECTION IN NITRIDE BASED LIGHT-EMITTING DEVICES
Former [2021/07]JONCTIONS TUNNEL HÉTÉROGÈNES POUR INJECTION DE TROUS DANS DES DISPOSITIFS ÉMETTANT DE LA LUMIÈRE À BASE DE NITRURE
Entry into regional phase22.09.2020National basic fee paid 
22.09.2020Search fee paid 
22.09.2020Designation fee(s) paid 
22.09.2020Examination fee paid 
Examination procedure22.09.2020Examination requested  [2021/07]
07.12.2021Amendment by applicant (claims and/or description)
11.04.2023Communication of intention to grant the patent
17.08.2023Fee for grant paid
17.08.2023Fee for publishing/printing paid
17.08.2023Receipt of the translation of the claim(s)
Opposition(s)28.06.2024No opposition filed within time limit [2024/36]
Fees paidRenewal fee
15.04.2021Renewal fee patent year 03
20.03.2022Renewal fee patent year 04
14.03.2023Renewal fee patent year 05
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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  TooltipAT27.09.2023
CZ27.09.2023
DK27.09.2023
EE27.09.2023
ES27.09.2023
FI27.09.2023
HR27.09.2023
IT27.09.2023
LT27.09.2023
LV27.09.2023
NL27.09.2023
PL27.09.2023
RO27.09.2023
RS27.09.2023
SE27.09.2023
SK27.09.2023
SM27.09.2023
NO27.12.2023
GR28.12.2023
IS27.01.2024
PT29.01.2024
[2024/33]
Former [2024/26]AT27.09.2023
CZ27.09.2023
EE27.09.2023
ES27.09.2023
FI27.09.2023
HR27.09.2023
IT27.09.2023
LT27.09.2023
LV27.09.2023
NL27.09.2023
PL27.09.2023
RO27.09.2023
RS27.09.2023
SE27.09.2023
SK27.09.2023
SM27.09.2023
NO27.12.2023
GR28.12.2023
IS27.01.2024
PT29.01.2024
Former [2024/25]AT27.09.2023
CZ27.09.2023
EE27.09.2023
ES27.09.2023
FI27.09.2023
HR27.09.2023
LT27.09.2023
LV27.09.2023
NL27.09.2023
PL27.09.2023
RO27.09.2023
RS27.09.2023
SE27.09.2023
SK27.09.2023
SM27.09.2023
NO27.12.2023
GR28.12.2023
IS27.01.2024
PT29.01.2024
Former [2024/23]AT27.09.2023
CZ27.09.2023
EE27.09.2023
ES27.09.2023
FI27.09.2023
HR27.09.2023
LT27.09.2023
LV27.09.2023
NL27.09.2023
RO27.09.2023
RS27.09.2023
SE27.09.2023
SK27.09.2023
SM27.09.2023
NO27.12.2023
GR28.12.2023
IS27.01.2024
PT29.01.2024
Former [2024/20]FI27.09.2023
HR27.09.2023
LT27.09.2023
LV27.09.2023
NL27.09.2023
RS27.09.2023
SE27.09.2023
SM27.09.2023
NO27.12.2023
GR28.12.2023
IS27.01.2024
Former [2024/14]FI27.09.2023
HR27.09.2023
LT27.09.2023
LV27.09.2023
NL27.09.2023
RS27.09.2023
SE27.09.2023
NO27.12.2023
GR28.12.2023
Former [2024/10]FI27.09.2023
HR27.09.2023
LT27.09.2023
LV27.09.2023
RS27.09.2023
SE27.09.2023
NO27.12.2023
GR28.12.2023
Former [2024/09]FI27.09.2023
LT27.09.2023
SE27.09.2023
NO27.12.2023
GR28.12.2023
Former [2024/08]LT27.09.2023
NO27.12.2023
GR28.12.2023
Documents cited:Search[A]WO2018035322  (UNIV CALIFORNIA [US]) [A] 1 * figure 5 *;
 [A]US2018076354  (RAJAN SIDDHARTH [US], et al) [A] 1-17 * paragraphs [0038] - [0042] * * figure 1 *;
 [A]  - KRISHNAMOORTHY SRIRAM ET AL, "III-nitride tunnel junctions for efficient solid state lighting", PROCEEDINGS OF SPIE, IEEE, US, (20140307), vol. 8986, doi:10.1117/12.2039382, ISBN 978-1-62841-730-2, pages 89861F - 89861F, XP060035041 [A] 1 * paragraph [02.4] * * figure 2a *

DOI:   http://dx.doi.org/10.1117/12.2039382
International search[A]US2004256611  (KIM JAMES C [US], et al) [A] 1-17* See the entire document. *;
 [A]US2008081390  (GASKA REMIGIJUS [US], et al) [A] 1-17 * See the entire document. *;
 [A]US2011243172  (LIN YOU-DA [US], et al) [A] 1-17 * See the entire document. *;
 [A]US9425351  (MA ZHENQIANG [US], et al) [A] 1-17 * See column 4, line 33-column 5, line 37, claims 1-20 and figures 1-4. *;
 [A]US2016359300  (EL-GHOROURY HUSSEIN S [US], et al) [A] 1-17 * See paragraphs 40-46, claims 1-9 and figures 1-3. *
by applicantWO2018035322
 US2018076354
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.