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The patent EP3784283 was granted to GW Research on Oct 23, 2024. The application was filed on Apr 26, 2019 under application number EP19721363A. 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 |
|---|---|---|---|
| KRAUS & LEDERER PARTGMBB | Jul 23, 2025 | KRAUS & LEDERER PARTGMBB | ADMISSIBLE |
| HAMM & WITTKOPP | Jul 22, 2025 | HAMM & WITTKOPP | ADMISSIBLE |
Patent citations refer to prior patents cited during different phases such as opposition or international search.
| Citation Phase | Publication Number |
|---|---|
| DESCRIPTION | EP2311475 |
| INTERNATIONAL-SEARCH-REPORT | GB2531282 |
| INTERNATIONAL-SEARCH-REPORT | GB2542155 |
| OPPOSITION | GB2531282 |
| OPPOSITION | GB2542155 |
| OPPOSITION | US2018193399 |
| OPPOSITION | WO02089945 |
| OPPOSITION | WO2015193667 |
| OPPOSITION | WO2015193668 |
| OPPOSITION | WO2016059399 |
| OPPOSITION | WO2016059403 |
| OPPOSITION | WO2016059405 |
| OPPOSITION | WO2016087649 |
| OPPOSITION | WO2016203239 |
| OPPOSITION | WO2017042567 |
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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Nov 6, 2024
Sep 26, 2024
Decision to grant a European patent
Search/Exam
Sep 13, 2024
(Electronic) Receipt
Search/Exam
Sep 13, 2024
French translation of claims
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Sep 13, 2024
German translation of the claims
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Sep 13, 2024
Letter accompanying subsequently filed items
Search/Exam
Aug 5, 2024
Change to the inventor details
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Jul 29, 2024
Jul 23, 2024
(Electronic) Receipt
Search/Exam
Jul 23, 2024
Annexes in respect of a client data request
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Jul 23, 2024
Annexes in respect of a client data request
Search/Exam
Jul 23, 2024
Letter accompanying subsequently filed items
Search/Exam
Jul 23, 2024
May 15, 2024
May 15, 2024
May 15, 2024
May 15, 2024
Intention to grant (signatures)
Search/Exam
May 15, 2024
Text intended for grant (clean copy)
Search/Exam
May 15, 2024
May 6, 2024
Annex to the communication
Search/Exam
May 6, 2024
May 6, 2024
May 6, 2024
Apr 17, 2024
(Electronic) Receipt
Search/Exam
Apr 17, 2024
Amended description with annotations
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Apr 17, 2024
Description
Search/Exam
Apr 17, 2024
Letter accompanying subsequently filed items
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Apr 17, 2024
Matter concerning the application
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Apr 15, 2024
(Electronic) Receipt
Search/Exam
Apr 15, 2024
(Electronic) Receipt
Search/Exam
Apr 15, 2024
(Electronic) Receipt
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Apr 15, 2024
(Electronic) Receipt
Search/Exam
Apr 15, 2024
Amended claims with annotations
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Apr 15, 2024
Amended claims with annotations
Search/Exam
Apr 15, 2024
Claims
Search/Exam
Apr 15, 2024
Claims
Search/Exam
Apr 15, 2024
Letter accompanying subsequently filed items
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Apr 15, 2024
Letter accompanying subsequently filed items
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Apr 15, 2024
Letter accompanying subsequently filed items
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Apr 15, 2024
Letter accompanying subsequently filed items
Search/Exam
Apr 15, 2024
Matter concerning the application
Search/Exam
Apr 15, 2024
Apr 15, 2024
Apr 15, 2024
Apr 15, 2024
Apr 12, 2024
(Electronic) Receipt
Search/Exam
Apr 12, 2024
Letter accompanying subsequently filed items
Search/Exam
Apr 12, 2024
Apr 5, 2024
Annex to the communication
Search/Exam
Apr 5, 2024
Consultation by telephone/in person
Search/Exam
Apr 5, 2024
Apr 3, 2024
Mar 15, 2024
(Electronic) Receipt
Search/Exam
Mar 15, 2024
Amended claims with annotations
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Mar 15, 2024
Amended claims with annotations
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Mar 15, 2024
Amended claims with annotations
Search/Exam
Mar 15, 2024
Annex
Search/Exam
Mar 15, 2024
Annex
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Mar 15, 2024
Annex
Search/Exam
Mar 15, 2024
Claims
Search/Exam
Mar 15, 2024
Claims
Search/Exam
Mar 15, 2024
Claims
Search/Exam
Mar 15, 2024
Letter accompanying subsequently filed items
Search/Exam
Mar 15, 2024
Mar 15, 2024
Mar 15, 2024
Mar 13, 2024
Annex to the communication
Search/Exam
Mar 13, 2024
Consultation by telephone/in person
Search/Exam
Mar 13, 2024
Nov 14, 2023
Annex to the communication
Search/Exam
Nov 14, 2023
Summons to attend oral proceedings
Search/Exam
Dec 21, 2022
(Electronic) Receipt
Search/Exam
Dec 21, 2022
Amended claims with annotations
Search/Exam
Dec 21, 2022
Claims
Search/Exam
Dec 21, 2022
Letter accompanying subsequently filed items
Search/Exam
Dec 21, 2022
Aug 24, 2022
Annex to the communication
Search/Exam
Aug 24, 2022
Communication from the Examining Division
Search/Exam
Aug 18, 2022
Examination started
Search/Exam
Nov 10, 2021
Document concerning representation
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Nov 10, 2021
Letter accompanying subsequently filed items
Search/Exam
May 21, 2021
(Electronic) Receipt
Search/Exam
May 21, 2021
May 21, 2021
Amended claims with annotations
Search/Exam
May 21, 2021
Amendments received before examination
Search/Exam
May 21, 2021
Letter accompanying subsequently filed items
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Feb 3, 2021
Dec 4, 2020
Dec 2, 2020
Communication to designated inventor
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Dec 2, 2020
Communication to designated inventor
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Dec 2, 2020
Communication to designated inventor
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Dec 2, 2020
Communication to designated inventor
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Dec 2, 2020
Communication to designated inventor
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Dec 2, 2020
Communication to designated inventor
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Dec 2, 2020
Communication to designated inventor
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Dec 2, 2020
Communication to designated inventor
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Dec 2, 2020
Communication to designated inventor
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Nov 4, 2020
(Electronic) Receipt
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Nov 4, 2020
Request for entry into the European phase
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Nov 2, 2020
Sep 4, 2020
Information on entry into European phase
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Aug 27, 2020
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Jul 9, 2020
Written opinion
PCT2
Jul 9, 2020
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Mar 26, 2020
Copy of the international search report
Search/Exam
Mar 26, 2020
Published international application - A9
Search/Exam
Mar 26, 2020
Written opinion
PCT2
Mar 26, 2020
Mar 26, 2020
Mar 16, 2020
Notification of election of EPO
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Mar 11, 2020
Feb 28, 2020
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PCT demand form
PCT2
Feb 24, 2020
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Nov 18, 2019
Oct 31, 2019
Copy of the international search report
Search/Exam
Oct 31, 2019
Published international application - A1
Search/Exam
Jul 26, 2019
ISR: cited documents
PCTISA
Jul 26, 2019
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Abstract
PCTISA
May 3, 2019
Claims
PCTISA
May 3, 2019
Description
PCTISA
May 3, 2019
Drawings
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