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The patent EP3404156 was granted to Tremco CPG Germany on Jul 6, 2022. The application was filed on May 14, 2018 under application number EP18172030A. 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 |
|---|---|---|---|
| HANNO WERK | Apr 6, 2023 | PATENTANWALTE THOMEN & KORNER | ADMISSIBLE |
| ISO CHEMIE | Apr 3, 2023 | WACHTER | ADMISSIBLE |
Patent citations refer to prior patents cited during different phases such as opposition or international search.
| Citation Phase | Publication Number |
|---|---|
| EXAMINATION | EP2107176 |
| OPPOSITION | DE102010055788 |
| OPPOSITION | DE102015116667 |
| OPPOSITION | DE202010008331U |
| OPPOSITION | DE202011104063U |
| OPPOSITION | DE202012005049U |
| OPPOSITION | DE202012101990U |
| OPPOSITION | DE202012103636U |
| OPPOSITION | EP0072955 |
| OPPOSITION | EP1936246 |
| OPPOSITION | EP2107176 |
| OPPOSITION | EP2620565 |
| OPPOSITION | EP2990551 |
| OPPOSITION | EP2990552 |
| OPPOSITION | EP2990553 |
| OPPOSITION | US2005067092 |
| OPPOSITION | WO2008074389 |
| SEARCH | DE102015116667 |
| SEARCH | EP2990552 |
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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Decision to grant a European patent
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(Electronic) Receipt
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Letter accompanying subsequently filed items
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(Electronic) Receipt
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English translation of the claims
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French translation of claims
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May 24, 2022
Letter accompanying subsequently filed items
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Intention to grant (signatures)
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Text intended for grant (clean copy)
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Claims
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Description
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Letter accompanying subsequently filed items
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Annex to the communication
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Communication from the Examining Division
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(Electronic) Receipt
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Amended claims with annotations
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Claims
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(Electronic) Receipt
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Letter accompanying subsequently filed items
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Oral proceedings: reply to date proposed
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May 25, 2021
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Advice of delivery
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Acknowledgement of a document
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Annex to the communication
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Summons to attend oral proceedings
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Aug 7, 2020
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Aug 7, 2020
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(Electronic) Receipt
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May 18, 2020
Letter accompanying subsequently filed items
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Mar 30, 2020
Annex to the communication
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Mar 30, 2020
Communication from the Examining Division
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Mar 19, 2020
Examination started
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May 21, 2019
(Electronic) Receipt
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May 21, 2019
Letter accompanying subsequently filed items
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(Electronic) Receipt
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Amended claims with annotations
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May 8, 2019
Letter accompanying subsequently filed items
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Nov 26, 2018
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Notification of forthcoming publication
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Annexes in respect of a client data request
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European search opinion
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European search report
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Information on Search Strategy
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Sep 25, 2018
Search started
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Jul 6, 2018
Communication to designated inventor
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Communication to designated inventor
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Communication to designated inventor
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Letter concerning the priority
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Priority document
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Abstract
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Claims
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May 14, 2018
Description
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Designation of inventor
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Drawings
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May 14, 2018
Priority search results
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May 14, 2018
Request for grant of a European patent
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