IP Verse

Telephone Signal Processing - EP3603043

The patent EP3603043 was granted to Semafone on Sep 14, 2022. The application was originally filed on Mar 21, 2018 under application number EP18715240A. The patent is currently recorded with a legal status of "Revoked".

EP3603043

SEMAFONE
Application Number
EP18715240A
Filing Date
Mar 21, 2018
Status
Revoked
Feb 14, 2025
Grant Date
Sep 14, 2022
External Links
Slate, Register, Google Patents

Patent Summary

Patent Family

Patent Family

Patent Oppositions (2)

Patent oppositions filed by competitors challenge the validity of a granted patent. These oppositions are typically based on claims of prior art, lack of novelty, or non-obviousness. They are a key part of the process for determining a patent's strength and enforceability.

CompanyOpposition DateRepresentativeOpposition Status

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ECKOH UK ECKOHJun 14, 2023DENTONS UK AND MIDDLE EASTADMISSIBLE
PCI PAL UKJun 14, 2023DUMMETT COPPADMISSIBLE

Patent Citations (23) New

Patent citations refer to prior patents cited during different phases such as opposition or international search.

Citation PhasePublication NumberPublication Link
INTERNATIONAL-SEARCH-REPORTEP1093310
INTERNATIONAL-SEARCH-REPORTUS2003194082
INTERNATIONAL-SEARCH-REPORTUS6199036
INTERNATIONAL-SEARCH-REPORTUS6674855
INTERNATIONAL-SEARCH-REPORTUS8831204
OPPOSITIONEP1093310
OPPOSITIONEP1748426
OPPOSITIONEP3029918
OPPOSITIONGB2456297
OPPOSITIONGB2478916
OPPOSITIONUS2003194082
OPPOSITIONUS2004101128
OPPOSITIONUS2013077773
OPPOSITIONUS2013242978
OPPOSITIONUS2015229772
OPPOSITIONUS2017026516
OPPOSITIONUS5889851
OPPOSITIONUS6199036
OPPOSITIONUS6674855
OPPOSITIONUS7113580
OPPOSITIONUS8831204
OPPOSITIONWO2016092331
OPPOSITIONWO2018172771

Non-Patent Literature (NPL) Citations (1) New

NPL citations refer to non-patent references such as research papers, articles, or other publications cited during examination or opposition phases.

Citation PhaseReference TextLink
OPPOSITION- Anonymous, "Single Digit being detected as Multiple DTMF digits when using RFC2833", Technical Helpweb Dialogic® PowerMedia™ HMP - Windows, (20130325), pages 1 - 3, Technical Helpweb Dialogic® PowerMedia™ HMP - Windows, URL: https://www.dialogic.com/support/logon.aspx?nextpage=/support/helpweb/helpweb.aspx/3775/single_digit_being_detected_as_multiple_dtmf_digits_when_using_rfc2833/pm_hmp_win, (20230627), XP093058162-

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Dossier Documents

The dossier documents provide a comprehensive record of the patent’s prosecution history - including filings, correspondence, and decisions made by patent offices - and are crucial for understanding the patent’s legal journey and any challenges it may have faced during examination.

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