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Extract from the Register of European Patents

EP About this file: EP4046195

EP4046195 - ELECTRO-OPTICAL DEVICE FABRICATED ON A SUBSTRATE AND COMPRISING FERROELECTRIC LAYER EPITAXIALLY GROWN ON THE SUBSTRATE [Right-click to bookmark this link]
StatusRequest for examination was made
Status updated on  22.07.2022
Database last updated on 14.09.2024
FormerThe international publication has been made
Status updated on  24.04.2021
Most recent event   Tooltip24.04.2024The date on which the examining division becomes responsible, has been established 
24.04.2024Amendment by applicant 
Applicant(s)For all designated states
Psiquantum Corp.
700 Hansen Way
Palo Alto, CA 94304 / US
[2022/34]
Inventor(s)01 / LIANG, Yong
700 Hansen Way
Palo Alto, CA 94304 / US
02 / KUMAR, Nikhil
700 Hansen Way
Palo Alto, CA 94304 / US
 [2022/34]
Representative(s)Barton, Russell Glen
Withers & Rogers LLP
2 London Bridge
London SE1 9RA / GB
[N/P]
Former [2022/34]Gillard, Matthew Paul
Withers & Rogers LLP
2 London Bridge
London SE1 9RA / GB
Application number, filing date20876848.119.10.2020
[2022/34]
WO2020US56365
Priority number, dateUS201962923413P18.10.2019         Original published format: US 201962923413 P
[2022/34]
Filing languageEN
Procedural languageEN
PublicationType: A1 Application with search report
No.:WO2021077104
Date:22.04.2021
Language:EN
[2021/16]
Type: A1 Application with search report 
No.:EP4046195
Date:24.08.2022
Language:EN
The application published by WIPO in one of the EPO official languages on 22.04.2021 takes the place of the publication of the European patent application.
[2022/34]
Search report(s)International search report - published on:US22.04.2021
(Supplementary) European search report - dispatched on:EP05.10.2023
ClassificationIPC:G02F1/035, G02B6/122, G02B6/13, G02F1/05
[2023/45]
CPC:
G02F1/035 (EP,US); G02B6/122 (EP,US); G02B6/131 (EP,US);
G02F1/0027 (US); G02F1/05 (EP,US); G02F1/0508 (US)
Former IPC [2022/34]H01L27/00, G02F1/00, G02B6/10, H01L21/00
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 [2022/34]
TitleGerman:AUF EINEM SUBSTRAT HERGESTELLTE ELEKTRO-OPTISCHE VORRICHTUNG, DIE EINE AUF DEM SUBSTRAT EPITAKTISCH AUFGEWACHSENE FERROELEKTRISCHE SCHICHT UMFASST[2022/34]
English:ELECTRO-OPTICAL DEVICE FABRICATED ON A SUBSTRATE AND COMPRISING FERROELECTRIC LAYER EPITAXIALLY GROWN ON THE SUBSTRATE[2022/34]
French:DISPOSITIF ÉLECTRO-OPTIQUE FABRIQUÉ SUR UN SUBSTRAT ET COMPRENANT UNE COUCHE FERROÉLECTRIQUE À CROISSANCE ÉPITAXIALE SUR LE SUBSTRAT[2022/34]
Entry into regional phase11.05.2022National basic fee paid 
11.05.2022Search fee paid 
11.05.2022Designation fee(s) paid 
11.05.2022Examination fee paid 
Examination procedure11.05.2022Examination requested  [2022/34]
24.04.2024Amendment by applicant (claims and/or description)
24.04.2024Date on which the examining division has become responsible
Fees paidRenewal fee
14.10.2022Renewal fee patent year 03
31.10.2023Renewal fee patent year 04
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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[X]WO2006028477  (MASSACHUSETTS INST FOR TECHNOL [US], et al) [X] 1,6,7,9,10,12 * figures 1-3 ** the whole document *;
 [XI]  - ORTMANN ET AL, "Optical and electro-optical phenomena in transition metal oxide thin film heterostructures", DISSERTATION UNIVERSITY OF TEXAS AT AUSTIN, (20190501), pages 1 - 197, URL: https://repositories.lib.utexas.edu/bitstream/handle/2152/75876/ORTMANN-DISSERTATION-2019.pdf?sequence=1&isAllowed=y, (20230501), XP055932640 [X] 1,10,12 * the whole document * * figure 7.10 * [I] 2-5,8,11,13-15
International search[Y]US2004150043  (HOLM PAIGE M [US], et al) [Y] 1-6 * ; the entire document, and more specifically: para [0003], [0033]. [0035]. [0058]-[0059], [0064], [0066], [0068]; figures 1 and 5; abstract; title *;
 [A]US7039264  (BRYAN MICHAEL A [US], et al) [A] 1-6 * ; the entire document *;
 [A]US9442314  (CUNNINGHAM JOHN E [US], et al) [A] 1-6 * ; the entire document *;
 [Y]  - CUEFF et al., "Hybrid silicon-ferroelectric oxide platform for tunable nanophotonics on silicon", 18th International Conference on Transparent Optical Networks, (20160700), doi:10.1109/ICTON.2016.7550429, pages 1 - 4, XP032949943 [Y] 1-6. * (the entire document, and more specifically: pg 2, para 2-4; pg 3, para 2; pg 4, para 1; figures 1a, 3a and 3b; abstract; title) *

DOI:   http://dx.doi.org/10.1109/ICTON.2016.7550429
 [A]  - PERNICE et al., "Design of a Silicon Integrated Electro-Optic Modulator Using Ferroelectric BaTiO3 Films", IEEE Photonics Technology Letters, (20140700), vol. 26, no. 13, doi:10.1109/LPT.2014.2322501, pages 1344 - 1347, XP011551694 [A] 1-6 * (the entire document) *

DOI:   http://dx.doi.org/10.1109/LPT.2014.2322501
 [A]  - ROMEO Rojo, Hu X; Cueff S; Wague B; Orobtchouk R; Vilqui B; Bachelet R; Grenet G; Dubourdieu C; Regreny P; Saint-Girons G; Castera P; Gutierrez A M; Sanchez N; Angelova T; Sanchis P; Abel S; Fompeyrine J, "Integration of functional oxides on SOI for agile silicon photonics", 17th International Conference on Transparent Optical Networks, (20150700), doi:10.1109/ICTON.2015.7193606, pages 1 - 5, XP033191881 [A] 1-6 * (the entire document) *

DOI:   http://dx.doi.org/10.1109/ICTON.2015.7193606
by applicantWO2006028477
    - ORTMANN et al., "Optical and electro-optical phenomena in transition metal oxide thin film heterostructures", Dissertation University of Texas Austin, (20190501), pages 1 - 197, XP055932640
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.