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The patent EP3754520 was granted to Bright Data on Feb 2, 2022. The application was filed on Aug 16, 2018 under application number EP20190267A. 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 |
|---|---|---|---|
| OXYLABS | Feb 24, 2022 | MARKS & CLERK | ADMISSIBLE |
Patent citations refer to prior patents cited during different phases such as opposition or international search.
| Citation Phase | Publication Number |
|---|---|
| DESCRIPTION | US2005018645 |
| DESCRIPTION | US2006164383 |
| DESCRIPTION | US2006212584 |
| DESCRIPTION | US2007052672 |
| DESCRIPTION | US2010110368 |
| DESCRIPTION | US2012050144 |
| DESCRIPTION | US2012050668 |
| DESCRIPTION | US2012166582 |
| DESCRIPTION | US2013169513 |
| DESCRIPTION | US2013191456 |
| DESCRIPTION | US2014045547 |
| DESCRIPTION | US2014070613 |
| DESCRIPTION | US2014159877 |
| DESCRIPTION | US2015163087 |
| DESCRIPTION | US2015277559 |
| DESCRIPTION | US2015341901 |
| DESCRIPTION | US2015349556 |
| DESCRIPTION | US2015373443 |
| DESCRIPTION | US2016337426 |
| DESCRIPTION | US3962539 |
| DESCRIPTION | US4405829 |
| DESCRIPTION | US4853884 |
| DESCRIPTION | US4905176 |
| DESCRIPTION | US5578755 |
| DESCRIPTION | US5961593 |
| DESCRIPTION | US5962786 |
| DESCRIPTION | US6236652 |
| DESCRIPTION | US6670212 |
| DESCRIPTION | US7027418 |
| DESCRIPTION | US7124157 |
| DESCRIPTION | US7145933 |
| DESCRIPTION | US7162539 |
| DESCRIPTION | US7203741 |
| DESCRIPTION | US7326866 |
| DESCRIPTION | US7440994 |
| DESCRIPTION | US7562112 |
| DESCRIPTION | US7565450 |
| DESCRIPTION | US7605714 |
| DESCRIPTION | US7617729 |
| DESCRIPTION | US7716985 |
| DESCRIPTION | US7774155 |
| DESCRIPTION | US7853795 |
| DESCRIPTION | US7865585 |
| DESCRIPTION | US7892876 |
| DESCRIPTION | US7929535 |
| DESCRIPTION | US8135912 |
| DESCRIPTION | US8301787 |
| DESCRIPTION | US8302161 |
| DESCRIPTION | US8504723 |
| DESCRIPTION | US8508472 |
| DESCRIPTION | US8560604 |
| DESCRIPTION | US8671221 |
| DESCRIPTION | US8948832 |
| DESCRIPTION | US8957988 |
| DESCRIPTION | US9241044 |
| DESCRIPTION | US9244682 |
| DESCRIPTION | US9378473 |
| DESCRIPTION | US9660895 |
| OPPOSITION | EP3754520 |
| OPPOSITION | WO2019043687 |
| SEARCH | US2016105530 |
| SEARCH | US2016352628 |
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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Aug 7, 2025
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(Electronic) Receipt
Appeal
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Reply to appeal
Appeal
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(Electronic) Receipt
Appeal
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Reply to appeal
Appeal
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Appeal
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(Electronic) Receipt
Appeal
Dec 9, 2024
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Appeal
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Notice of appeal
Appeal
Dec 9, 2024
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Means of redress
OPPO
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Decision to grant a European patent
Search/Exam
Dec 31, 2021
Document concerning representation
Search/Exam
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(Electronic) Receipt
Search/Exam
Dec 23, 2021
French translation of claims
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Dec 23, 2021
German translation of the claims
Search/Exam
Dec 23, 2021
Letter accompanying subsequently filed items
Search/Exam
Nov 8, 2021
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Intention to grant (signatures)
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(Electronic) Receipt
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Jul 5, 2021
Amended claims with annotations
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Jul 5, 2021
Claims
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Letter accompanying subsequently filed items
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Letter accompanying subsequently filed items
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Apr 14, 2021
Observations by third parties
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Apr 9, 2021
(Electronic) Receipt
Search/Exam
Apr 9, 2021
Annexes in respect of a client data request
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Apr 9, 2021
Mar 19, 2021
Annex to the communication
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Mar 19, 2021
Communication from the Examining Division
Search/Exam
Mar 16, 2021
Examination started
Search/Exam
Jan 13, 2021
Dec 2, 2020
(Electronic) Receipt
Search/Exam
Dec 2, 2020
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Amended claims with annotations
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Dec 2, 2020
Amendments received before examination
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Dec 2, 2020
Letter accompanying subsequently filed items
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Nov 25, 2020
Notification of forthcoming publication
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Oct 13, 2020
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European search opinion
Search/Exam
Oct 13, 2020
European search report
Search/Exam
Oct 13, 2020
Information on Search Strategy
Search/Exam
Oct 2, 2020
Communication to designated inventor
Search/Exam
Oct 2, 2020
Communication to designated inventor
Search/Exam
Aug 10, 2020
Abstract
Search/Exam
Aug 10, 2020
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Claims
Search/Exam
Aug 10, 2020
Description
Search/Exam
Aug 10, 2020
Designation of inventor
Search/Exam
Aug 10, 2020
Drawings
Search/Exam
Aug 10, 2020
Request for grant of a European patent
Search/Exam
Mar 19, 2019
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