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Extract from the Register of European Patents

EP About this file: EP3994809

EP3994809 - MODULATION FORMATS WITH FRACTIONAL SPECTRAL EFFICIENCY [Right-click to bookmark this link]
StatusNo opposition filed within time limit
Status updated on  04.08.2023
Database last updated on 02.09.2024
FormerThe patent has been granted
Status updated on  26.08.2022
FormerGrant of patent is intended
Status updated on  31.07.2022
FormerRequest for examination was made
Status updated on  08.04.2022
FormerThe international publication has been made
Status updated on  23.03.2022
Formerunknown
Status updated on  22.09.2021
Most recent event   Tooltip07.06.2024Lapse of the patent in a contracting state
New state(s): MC		published on 10.07.2024  [2024/28]
Applicant(s)For all designated states
Ciena Corporation
7035 Ridge Road
Hanover, MD 21076 / US
[2022/19]
Inventor(s)01 / REIMER, Michael
Ottawa Ontario K2K 0L1 / CA
02 / OVEIS GHARAN, Shahab
San Jose California 95134 / US
03 / HARLEY, James
Ottawa Ontario K2K 0L1 / CA
 [2022/19]
Representative(s)Dehns
St. Bride's House
10 Salisbury Square
London EC4Y 8JD / GB
[2022/19]
Application number, filing date21769807.503.09.2021
[2022/19]
WO2021IB58066
Priority number, dateUS20201701849511.09.2020         Original published format: US202017018495
[2022/19]
Filing languageEN
Procedural languageEN
PublicationType: A1 Application with search report
No.:WO2022053922
Date:17.03.2022
Language:EN
[2022/11]
Type: A1 Application with search report 
No.:EP3994809
Date:11.05.2022
Language:EN
The application published by WIPO in one of the EPO official languages on 17.03.2022 takes the place of the publication of the European patent application.
[2022/19]
Type: B1 Patent specification 
No.:EP3994809
Date:28.09.2022
Language:EN
[2022/39]
Search report(s)International search report - published on:EP17.03.2022
ClassificationIPC:H04B10/516, H04B10/532, H04B10/54
[2022/19]
CPC:
H04B10/5161 (EP,US); H04B10/6162 (US); H04B10/532 (EP,US);
H04B10/541 (EP); H04L27/3405 (US); H04L27/367 (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 [2022/19]
Extension statesBANot yet paid
MENot yet paid
Validation statesKHNot yet paid
MANot yet paid
MDNot yet paid
TNNot yet paid
TitleGerman:MODULATIONSFORMATE MIT FRAKTIONIERTER SPEKTRALER EFFIZIENZ[2022/19]
English:MODULATION FORMATS WITH FRACTIONAL SPECTRAL EFFICIENCY[2022/19]
French:FORMATS DE MODULATION AVEC EFFICACITÉ SPECTRALE FRACTIONNAIRE[2022/19]
Entry into regional phase17.12.2021National basic fee paid 
17.12.2021Designation fee(s) paid 
17.12.2021Examination fee paid 
Examination procedure17.12.2021Amendment by applicant (claims and/or description)
17.12.2021Examination requested  [2022/19]
17.12.2021Date on which the examining division has become responsible
01.08.2022Communication of intention to grant the patent
18.08.2022Fee for grant paid
18.08.2022Fee for publishing/printing paid
18.08.2022Receipt of the translation of the claim(s)
Opposition(s)29.06.2023No opposition filed within time limit [2023/36]
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  TooltipAL28.09.2022
AT28.09.2022
CZ28.09.2022
DK28.09.2022
EE28.09.2022
ES28.09.2022
FI28.09.2022
HR28.09.2022
IT28.09.2022
LT28.09.2022
LV28.09.2022
MC28.09.2022
PL28.09.2022
RO28.09.2022
RS28.09.2022
SE28.09.2022
SI28.09.2022
SK28.09.2022
SM28.09.2022
NO28.12.2022
GR29.12.2022
IS28.01.2023
PT30.01.2023
[2024/28]
Former [2024/27]AL28.09.2022
AT28.09.2022
CZ28.09.2022
DK28.09.2022
EE28.09.2022
ES28.09.2022
FI28.09.2022
HR28.09.2022
IT28.09.2022
LT28.09.2022
LV28.09.2022
PL28.09.2022
RO28.09.2022
RS28.09.2022
SE28.09.2022
SI28.09.2022
SK28.09.2022
SM28.09.2022
NO28.12.2022
GR29.12.2022
IS28.01.2023
PT30.01.2023
Former [2023/51]AL28.09.2022
AT28.09.2022
CZ28.09.2022
DK28.09.2022
EE28.09.2022
ES28.09.2022
FI28.09.2022
HR28.09.2022
LT28.09.2022
LV28.09.2022
PL28.09.2022
RO28.09.2022
RS28.09.2022
SE28.09.2022
SI28.09.2022
SK28.09.2022
SM28.09.2022
NO28.12.2022
GR29.12.2022
IS28.01.2023
PT30.01.2023
Former [2023/34]AL28.09.2022
AT28.09.2022
CZ28.09.2022
DK28.09.2022
EE28.09.2022
ES28.09.2022
FI28.09.2022
HR28.09.2022
LT28.09.2022
LV28.09.2022
PL28.09.2022
RO28.09.2022
RS28.09.2022
SE28.09.2022
SK28.09.2022
SM28.09.2022
NO28.12.2022
GR29.12.2022
IS28.01.2023
PT30.01.2023
Former [2023/29]AL28.09.2022
AT28.09.2022
CZ28.09.2022
EE28.09.2022
ES28.09.2022
FI28.09.2022
HR28.09.2022
LT28.09.2022
LV28.09.2022
PL28.09.2022
RO28.09.2022
RS28.09.2022
SE28.09.2022
SK28.09.2022
SM28.09.2022
NO28.12.2022
GR29.12.2022
IS28.01.2023
PT30.01.2023
Former [2023/26]AT28.09.2022
CZ28.09.2022
EE28.09.2022
ES28.09.2022
FI28.09.2022
HR28.09.2022
LT28.09.2022
LV28.09.2022
PL28.09.2022
RO28.09.2022
RS28.09.2022
SE28.09.2022
SK28.09.2022
SM28.09.2022
NO28.12.2022
GR29.12.2022
IS28.01.2023
PT30.01.2023
Former [2023/23]AT28.09.2022
CZ28.09.2022
EE28.09.2022
ES28.09.2022
FI28.09.2022
HR28.09.2022
LT28.09.2022
LV28.09.2022
RO28.09.2022
RS28.09.2022
SE28.09.2022
SK28.09.2022
SM28.09.2022
NO28.12.2022
GR29.12.2022
PT30.01.2023
Former [2023/22]AT28.09.2022
CZ28.09.2022
ES28.09.2022
FI28.09.2022
HR28.09.2022
LT28.09.2022
LV28.09.2022
RO28.09.2022
RS28.09.2022
SE28.09.2022
SM28.09.2022
NO28.12.2022
GR29.12.2022
PT30.01.2023
Former [2023/20]FI28.09.2022
HR28.09.2022
LT28.09.2022
LV28.09.2022
RS28.09.2022
SE28.09.2022
SM28.09.2022
NO28.12.2022
GR29.12.2022
Former [2023/10]FI28.09.2022
HR28.09.2022
LT28.09.2022
LV28.09.2022
RS28.09.2022
SE28.09.2022
NO28.12.2022
GR29.12.2022
Former [2023/09]FI28.09.2022
LT28.09.2022
LV28.09.2022
RS28.09.2022
SE28.09.2022
NO28.12.2022
Former [2023/08]FI28.09.2022
LT28.09.2022
RS28.09.2022
SE28.09.2022
NO28.12.2022
Cited inInternational search[A]  - KOJIMA KEISUKE ET AL, "Nonlinearity-tolerant time domain hybrid modulation for 4-8 bits/symbol based on 2A8PSK", 2017 OPTICAL FIBER COMMUNICATIONS CONFERENCE AND EXHIBITION (OFC), OSA, (20170319), pages 1 - 3, XP033101426 [A] 1-15 * the whole document *
 [AD]  - MARTIN SJÖDIN ET AL, "Comparison of 128-SP-QAM with PM-16-QAM", OPTICS EXPRESS, (20120409), vol. 20, no. 8, doi:10.1364/OE.20.008356, ISSN 1094-4087, page 8356, XP055134850 [AD] 1-15 * the whole document *

DOI:   http://dx.doi.org/10.1364/OE.20.008356
by applicantUS10735135
    - WINZER, "High-Spectral-Efficiency Optical Modulation Formats", Journal of Lightwave technology, (20120000), vol. 30, doi:10.1109/JLT.2012.2212180, XP011486096

DOI:   http://dx.doi.org/10.1109/JLT.2012.2212180
    - AGRELLKARLSSON, "Power-Efficient Modulation Formats in Coherent Transmission Systems", Journal of Lightwave Technology, (20090000), vol. 27
    - SJODIN et al., "Comparison of 128-SP-QAM with PM-16-QAM", Optics Express, (20120000), vol. 20, doi:10.1364/OE.20.008356, XP055134850

DOI:   http://dx.doi.org/10.1364/OE.20.008356
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.