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The patent EP3144141 was granted to AGC on Dec 29, 2021. The application was filed on Sep 7, 2016 under application number EP16001949A. The patent is currently recorded with a legal status of "Patent Maintained As Amended".

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 |
|---|---|---|---|
| PILKINGTON GROUP | May 1, 2019 | STANLEY | ADMISSIBLE |
Patent citations refer to prior patents cited during different phases such as opposition or international search.
| Citation Phase | Publication Number |
|---|---|
| OPPOSITION | GB2011316 |
| OPPOSITION | JP2012101999 |
| OPPOSITION | JP2015101044 |
| OPPOSITION | US2012094084 |
| OPPOSITION | US2013295357 |
| OPPOSITION | US3558415 |
| OPPOSITION | US3592726 |
| OPPOSITION | US3772135 |
| OPPOSITION | US4985099 |
| OPPOSITION | WO2014052229 |
| OPPOSITION | WO2015031594 |
| OPPOSITION | WO2015057552 |
| OPPOSITION | WO2015092385 |
| OPPOSITION | WO2016196546 |
| SEARCH | US2012094084 |
| SEARCH | US2014087159 |
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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Annexes in respect of a client data request
Search/Exam
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Decision to grant a European patent
Search/Exam
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Filing of the translations of the claims
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French translation of claims
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German translation of the claims
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Intention to grant (signatures)
Search/Exam
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Text intended for grant (clean copy)
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Examination started
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Sep 14, 2017
Payment of fees and costs
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Sep 7, 2017
Matter concerning the application
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Notification of forthcoming publication
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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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Search started
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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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Payment of fees and costs
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Sep 7, 2016
Abstract
Search/Exam
Sep 7, 2016
Claims
Search/Exam
Sep 7, 2016
Description
Search/Exam
Sep 7, 2016
Designation of inventor
Search/Exam
Sep 7, 2016
Drawings
Search/Exam
Sep 7, 2016
Request for grant of a European patent
Search/Exam