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Extract from the Register of European Patents

EP About this file: EP4208745

EP4208745 - RESONANT DEVICE IMPROVEMENT IN PICS USING SPARE DEVICES TO REDUCE POWER REQUIREMENTS [Right-click to bookmark this link]
StatusThe patent has been granted
Status updated on  01.12.2023
Database last updated on 03.10.2024
FormerGrant of patent is intended
Status updated on  01.11.2023
FormerExamination is in progress
Status updated on  01.09.2023
FormerRequest for examination was made
Status updated on  09.06.2023
FormerThe international publication has been made
Status updated on  22.04.2022
Formerunknown
Status updated on  29.03.2022
Most recent event   Tooltip08.08.2024Lapse of the patent in a contracting state
New state(s): SE		published on 11.09.2024  [2024/37]
Applicant(s)For all designated states
Ciena Corporation
7035 Ridge Road
Hanover, MD 21076 / US
[2023/28]
Inventor(s)01 / FRANKEL, Michael, Y.
Hanover, MD 21076 / US
02 / PELEKHATY, Vladimir
Hanover, MD 21076 / US
 [2023/28]
Representative(s)Dehns
10 Old Bailey
London EC4M 7NG / GB
[N/P]
Former [2023/28]Dehns
St. Bride's House
10 Salisbury Square
London EC4Y 8JD / GB
Application number, filing date21870479.903.09.2021
[2023/28]
WO2021US49002
Priority number, dateUS202063074801P04.09.2020         Original published format: US 202063074801 P
[2023/28]
Filing languageEN
Procedural languageEN
PublicationType: A2 Application without search report
No.:WO2022081278
Date:21.04.2022
Language:EN
[2022/16]
Type: A2 Application without search report 
No.:EP4208745
Date:12.07.2023
Language:EN
The application published by WIPO in one of the EPO official languages on 21.04.2022 takes the place of the publication of the European patent application.
[2023/28]
Type: B1 Patent specification 
No.:EP4208745
Date:03.01.2024
Language:EN
[2024/01]
Search report(s)International search report - published on:EP14.07.2022
ClassificationIPC:G02B6/12, G02B6/293, G02F1/01
[2023/28]
CPC:
G02B6/12007 (EP,US); G02B6/29343 (EP,US); G02B6/29382 (EP,US);
G02B6/29395 (EP,US); G02F1/0147 (EP,US); G02F2203/15 (EP,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 [2023/28]
Extension statesBANot yet paid
MENot yet paid
Validation statesKHNot yet paid
MANot yet paid
MDNot yet paid
TNNot yet paid
TitleGerman:VERBESSERUNG EINER RESONANZKÖRPER EINES PICS DURCH VERWENDUNG VON ERSATZKÖRPERN ZUR VERRINGERUNG DES ENERGIEBEDARFS[2023/46]
English:RESONANT DEVICE IMPROVEMENT IN PICS USING SPARE DEVICES TO REDUCE POWER REQUIREMENTS[2023/28]
French:AMÉLIORATION DE DISPOSITIF RÉSONANT DANS DES PIC À L'AIDE DE DISPOSITIFS DE RÉSERVE POUR RÉDUIRE LES EXIGENCES DE PUISSANCE[2023/28]
Former [2023/28]RESONANZVORRICHTUNGSVERBESSERUNG IN PICS UNTER VERWENDUNG VON ERSATZVORRICHTUNGEN ZUR REDUZIERUNG DER STROMANFORDERUNGEN
Entry into regional phase04.04.2023National basic fee paid 
04.04.2023Designation fee(s) paid 
04.04.2023Examination fee paid 
Examination procedure04.04.2023Amendment by applicant (claims and/or description)
04.04.2023Examination requested  [2023/28]
04.04.2023Date on which the examining division has become responsible
04.09.2023Despatch of a communication from the examining division (Time limit: M04)
08.09.2023Reply to a communication from the examining division
02.11.2023Communication of intention to grant the patent
23.11.2023Fee for grant paid
23.11.2023Fee for publishing/printing paid
23.11.2023Receipt of the translation of the claim(s)
Fees paidRenewal fee
25.09.2023Renewal fee patent year 03
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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  TooltipAT03.01.2024
BG03.01.2024
CZ03.01.2024
ES03.01.2024
HR03.01.2024
LT03.01.2024
LV03.01.2024
PL03.01.2024
SE03.01.2024
NO03.04.2024
RS03.04.2024
GR04.04.2024
IS03.05.2024
PT03.05.2024
[2024/37]
Former [2024/36]AT03.01.2024
BG03.01.2024
CZ03.01.2024
ES03.01.2024
HR03.01.2024
LT03.01.2024
LV03.01.2024
PL03.01.2024
NO03.04.2024
RS03.04.2024
GR04.04.2024
IS03.05.2024
PT03.05.2024
Former [2024/35]AT03.01.2024
BG03.01.2024
CZ03.01.2024
ES03.01.2024
HR03.01.2024
LT03.01.2024
NO03.04.2024
RS03.04.2024
GR04.04.2024
IS03.05.2024
Former [2024/33]ES03.01.2024
LT03.01.2024
NO03.04.2024
IS03.05.2024
Former [2024/32]ES03.01.2024
IS03.05.2024
Former [2024/27]ES03.01.2024
Cited inInternational search[XYI]US2012057866  (MCLAREN MORAY [GB], et al) [X] 1-3,6,8,11-13,15 * figures 6, 8, 10, 11 * * paragraphs [0001] , [00 2] , [0 25] , [0 41] , [0 43] , [0 55] * [Y] 4,7,9,10,14 [I] 5;
 [Y]US2017214472  (CAPLAN DAVID O [US], et al) [Y] 4,7,9,10,14 * figures 1, 6, 17 ** paragraphs [0031] , [0 59] , [0 69] , [0 71] , [ 127] *
ExaminationUS2015381277
by applicant   - LI, C.ZHOU, L.POON, A. W., "Silicon microring carrier-injection-based modulators/switches with tunable extinction ratios and OR-logic switching by using waveguide cross-coupling", Opt. Express, (20070000), vol. 15, no. 8, pages 5069 - 5076
    - S. DARMAWANY. M. LANDOBASAM. K. CHIN, "Nested ring Mach-Zehnder interferometer", Opt. Express, (20070000), vol. 15, pages 437 - 448
    - ZHOU, L.POON, A. W., "Electrically reconfigurable silicon microring resonator-based filter with waveguide-coupled feedback", Opt. Express, (20070000), vol. 15, page 9194
    - J. HONGY. ENAMI, "Modeling and analysis of microring resonator modulators with feedback waveguide coupling", J. Lightw. Technol., (20111200), vol. 29, no. 21, doi:10.1109/JLT.2011.2167742, pages 3243 - 3249, XP011363148

DOI:   http://dx.doi.org/10.1109/JLT.2011.2167742
    - D. ADAMSA. ABOKETAFS. PREBLE, "Robust phase-shift keying silicon photonic modulator", Opt. Express, (20120000), vol. 20, no. 16, pages 17440 - 17447
    - G. ZHAO et al., "Tunable Fano resonances based on microring resonator with feedback coupled waveguide", Opt. Exp., (20160900), vol. 24, no. 18, doi:10.1364/OE.24.020187, pages 20187 - 20195, XP055870038

DOI:   http://dx.doi.org/10.1364/OE.24.020187
    - S. WANR. NIUH.-L. RENC.-L. ZOUG.-C. GUOC.-H. DONG, "Experimental demonstration of dissipative sensing in a self-interference microring resonator", Photon. Res., (20180000), vol. 6, pages 681 - 685
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.