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The patent EP3670528 was granted to Amgen on Sep 8, 2021. The application was filed on Apr 28, 2006 under application number EP19211623A. 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 |
|---|---|---|---|
| JAMES POOLE | Jun 7, 2022 | CARPMAELS & RANSFORD | WITHDRAWN |
Patent citations refer to prior patents cited during different phases such as opposition or international search.
| Citation Phase | Publication Number |
|---|---|
| DESCRIPTION | US20070868497 |
| DESCRIPTION | US2004009535 |
| DESCRIPTION | US2004146888 |
| DESCRIPTION | US2005106683 |
| DESCRIPTION | US2005238646 |
| DESCRIPTION | US4179337 |
| DESCRIPTION | US4301144 |
| DESCRIPTION | US4331647 |
| DESCRIPTION | US4411993 |
| DESCRIPTION | US4464456 |
| DESCRIPTION | US4496689 |
| DESCRIPTION | US4543439 |
| DESCRIPTION | US4640835 |
| DESCRIPTION | US4670417 |
| DESCRIPTION | US4791192 |
| DESCRIPTION | US4902614 |
| DESCRIPTION | US5145684 |
| DESCRIPTION | US5223409 |
| DESCRIPTION | US5399363 |
| DESCRIPTION | US5466468 |
| DESCRIPTION | US5543158 |
| DESCRIPTION | US5552157 |
| DESCRIPTION | US5565213 |
| DESCRIPTION | US5567434 |
| DESCRIPTION | US5627052 |
| DESCRIPTION | US5641515 |
| DESCRIPTION | US5698426 |
| DESCRIPTION | US5738868 |
| DESCRIPTION | US5795587 |
| DESCRIPTION | US5877397 |
| DESCRIPTION | US6133426 |
| DESCRIPTION | US6395511 |
| DESCRIPTION | US6703199 |
| DESCRIPTION | US6803453 |
| DESCRIPTION | USRE32011E |
| DESCRIPTION | WO9202551 |
| OPPOSITION | EP1636270 |
| OPPOSITION | WO0032773 |
| OPPOSITION | WO2005003158 |
| OPPOSITION | WO2005014650 |
| SEARCH | WO2005003158 |
| SEARCH | WO2005014650 |
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.
Date
Description
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Sep 21, 2021
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Document concerning representation
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Aug 12, 2021
Decision to grant a European patent
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Aug 3, 2021
(Electronic) Receipt
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Aug 3, 2021
Filing of the translations of the claims
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Aug 3, 2021
French translation of claims
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Aug 3, 2021
German translation of the claims
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Aug 3, 2021
Letter accompanying subsequently filed items
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Mar 31, 2021
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Intention to grant (signatures)
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Mar 31, 2021
Text intended for grant (clean copy)
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Mar 31, 2021
Text intended for grant (sequence listing)
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Mar 31, 2021
Oct 8, 2020
(Electronic) Receipt
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Oct 8, 2020
Amended description with annotations
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Oct 8, 2020
Annex to the communication
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Oct 8, 2020
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Description
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Oct 8, 2020
Letter accompanying subsequently filed items
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Oct 8, 2020
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Sep 9, 2020
Examination started
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Jul 16, 2020
(Electronic) Receipt
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Jul 16, 2020
Letter accompanying subsequently filed items
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Jul 16, 2020
Reply to Written Opinion prepared by the EPO
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Jun 29, 2020
May 27, 2020
Notification of forthcoming publication
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Mar 30, 2020
Change to the inventor details
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Mar 30, 2020
Refund of fees
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Mar 26, 2020
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European search opinion
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Mar 26, 2020
European search report
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Mar 26, 2020
Information on Search Strategy
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Mar 20, 2020
(Electronic) Receipt
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Mar 20, 2020
Annex
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Mar 20, 2020
Letter accompanying subsequently filed items
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Mar 20, 2020
Letter concerning the inventor
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Mar 18, 2020
Search started
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Mar 17, 2020
Subsequently filed documents not duly signed
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Mar 5, 2020
Letter concerning the inventor
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Jan 17, 2020
Communication to designated inventor
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Communication to designated inventor
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Communication to designated inventor
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Communication to designated inventor
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Communication to designated inventor
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Communication to designated inventor
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Communication to designated inventor
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Communication to designated inventor
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Communication to designated inventor
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Communication to designated inventor
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Communication to designated inventor
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Jan 17, 2020
Communication to designated inventor
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Nov 26, 2019
Abstract
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Nov 26, 2019
Nov 26, 2019
Annex
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Nov 26, 2019
Claims
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Nov 26, 2019
Converted Sequence Listing
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Nov 26, 2019
Description
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Nov 26, 2019
Designation of inventor
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Nov 26, 2019
Drawings
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Nov 26, 2019
Letter concerning search matters
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Nov 26, 2019
Request for grant of a European patent
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Nov 26, 2019
Sequence listing
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