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The patent EP3191461 was granted to Pfizer on Nov 3, 2021. The application was filed on Aug 31, 2015 under application number EP15771276A. The patent is currently recorded with a legal status of "Granted And Under Opposition".

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.
| Company | Opposition Date | Representative | Opposition Status |
|---|---|---|---|
| ALFRED E TIEFENBACHER | Aug 3, 2022 | AERA | ADMISSIBLE |
| ALFRED E TIEFENBACHER | Aug 3, 2022 | BARDEHLE PAGENBERG SL | ADMISSIBLE |
| GALENICUM HEALTH SLU | Aug 3, 2022 | GALENICUM HEALTH SLU | ADMISSIBLE |
| HOLLATZ | Aug 3, 2022 | TER MEER STEINMEISTER & PARTNER | ADMISSIBLE |
| KELTIE | Aug 3, 2022 | MOORE | ADMISSIBLE |
| QUIMICA SINTETICA | Aug 3, 2022 | AERA | ADMISSIBLE |
| QUIMICA SINTETICA | Aug 3, 2022 | BARDEHLE PAGENBERG SL | ADMISSIBLE |
Patent citations refer to prior patents cited during different phases such as opposition or international search.
| Citation Phase | Publication Number |
|---|---|
| DESCRIPTION | US5033252 |
| DESCRIPTION | US5052558 |
| DESCRIPTION | US5323907 |
| DESCRIPTION | US7214695 |
| DESCRIPTION | US8576985 |
| INTERNATIONAL-SEARCH-REPORT | US7214695 |
| INTERNATIONAL-SEARCH-REPORT | WO2013038351 |
| OPPOSITION | EP1587821 |
| OPPOSITION | US7214695 |
| OPPOSITION | WO2004056315 |
| OPPOSITION | WO2013038351 |
| OPPOSITION | WO2019175263 |
| OPPOSITION | WO2020232325 |
| OPPOSITION | WO2021001858 |
| OPPOSITION | WO2021152623 |
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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Description
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(Electronic) Receipt
Appeal
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Appeal
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Appeal
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Notice of appeal
Appeal
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(Electronic) Receipt
Appeal
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Notice of appeal
Appeal
Jan 8, 2024
(Electronic) Receipt
Appeal
Jan 8, 2024
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Notice of appeal
Appeal
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Nov 16, 2021
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Decision to grant a European patent
Search/Exam
Sep 27, 2021
(Electronic) Receipt
Search/Exam
Sep 27, 2021
Filing of the translations of the claims
Search/Exam
Sep 27, 2021
French translation of claims
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Sep 27, 2021
German translation of the claims
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Jun 28, 2021
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Intention to grant (signatures)
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Jun 28, 2021
Text intended for grant (clean copy)
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Jun 28, 2021
May 10, 2021
(Electronic) Receipt
Search/Exam
May 10, 2021
Claims
Search/Exam
May 10, 2021
Letter accompanying subsequently filed items
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May 10, 2021
Feb 23, 2021
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Intention to grant (signatures)
Search/Exam
Feb 23, 2021
Text intended for grant (clean copy)
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Feb 23, 2021
Nov 11, 2020
(Electronic) Receipt
Search/Exam
Nov 11, 2020
Amended claims with annotations
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Nov 11, 2020
Amended description with annotations
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Nov 11, 2020
Claims
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Nov 11, 2020
Description
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Nov 11, 2020
Letter accompanying subsequently filed items
Search/Exam
Nov 11, 2020
Sep 17, 2020
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(Electronic) Receipt
Search/Exam
Sep 9, 2020
May 15, 2020
Annex to the communication
Search/Exam
May 15, 2020
Communication from the Examining Division
Search/Exam
Jan 29, 2020
(Electronic) Receipt
Search/Exam
Jan 29, 2020
Letter accompanying subsequently filed items
Search/Exam
Jan 29, 2020
Nov 18, 2019
Nov 12, 2019
(Electronic) Receipt
Search/Exam
Nov 12, 2019
Jul 19, 2019
Annex to the communication
Search/Exam
Jul 19, 2019
Communication from the Examining Division
Search/Exam
Apr 2, 2019
Mar 25, 2019
Non-patent literature filed by a third party
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Mar 25, 2019
Non-patent literature filed by a third party
Search/Exam
Mar 25, 2019
Observations by third parties
Search/Exam
Mar 6, 2019
Decision to allow further processing
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Feb 19, 2019
(Electronic) Receipt
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Feb 19, 2019
Annex
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Feb 19, 2019
Annex
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Feb 19, 2019
Letter accompanying subsequently filed items
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Feb 19, 2019
Request for further processing
Search/Exam
Dec 21, 2018
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Sep 6, 2018
(Electronic) Receipt
Search/Exam
Sep 6, 2018
May 14, 2018
Annex to the communication
Search/Exam
May 14, 2018
Communication from the Examining Division
Search/Exam
May 7, 2018
Examination started
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Nov 9, 2017
(Electronic) Receipt
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Nov 9, 2017
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Amended claims with annotations
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Nov 9, 2017
Amendments received before examination
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Nov 9, 2017
Letter accompanying subsequently filed items
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Jun 21, 2017
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Communication to designated inventor
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Apr 20, 2017
Communication to designated inventor
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Apr 20, 2017
Communication to designated inventor
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Mar 28, 2017
Mar 8, 2017
(Electronic) Receipt
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Mar 8, 2017
Request for entry into the European phase
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Jan 20, 2017
Information on entry into European phase
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Apr 5, 2016
Apr 5, 2016
Mar 17, 2016
Copy of the international search report
Search/Exam
Mar 17, 2016
Published international application - A1
Search/Exam
Dec 2, 2015
ISR: cited documents
PCTISA
Dec 1, 2015
Dec 1, 2015
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Oct 9, 2015
Sep 25, 2015
Abstract
PCTISA
Sep 25, 2015
Claims
PCTISA
Sep 25, 2015
Description
PCTISA
Sep 25, 2015
Drawings
PCTISA
Sep 25, 2015