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The patent EP3495077 was granted to Xian Bright Laser on May 4, 2022. The application was filed on Aug 2, 2017 under application number EP17836392A. 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 |
|---|---|---|---|
| NIKON SLM SOLUTIONS | Feb 2, 2023 | SCHOTT | ADMISSIBLE |
Patent citations refer to prior patents cited during different phases such as opposition or international search.
| Citation Phase | Publication Number |
|---|---|
| EXAMINATION | US2015165683 |
| EXAMINATION | US4972493 |
| INTERNATIONAL-SEARCH-REPORT | CN101678613 |
| INTERNATIONAL-SEARCH-REPORT | CN104690269 |
| INTERNATIONAL-SEARCH-REPORT | CN104853901 |
| INTERNATIONAL-SEARCH-REPORT | CN105150546 |
| INTERNATIONAL-SEARCH-REPORT | CN105745060 |
| INTERNATIONAL-SEARCH-REPORT | CN106312062 |
| INTERNATIONAL-SEARCH-REPORT | EP3002109 |
| OPPOSITION | CN105588845 |
| OPPOSITION | DE102013214320 |
| OPPOSITION | EP2006804 |
| OPPOSITION | US2015165683 |
| OPPOSITION | US4972493 |
| OPPOSITION | WO2009068165 |
| OPPOSITION | WO2017005675 |
| SEARCH | CN105588845 |
| SEARCH | DE102013214320 |
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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French translation of claims
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German translation of the claims
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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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Communication from the Examining Division
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Cover sheet for fax transmission
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Letter concerning the priority
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Translation of priority document
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Letter concerning the priority
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Translation of priority document
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Abstract
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Cover sheet for fax transmission
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Annex to the communication
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Communication from the Examining Division
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Examination started
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Priority search results
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Letter which had not been notified
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Communication to designated inventor
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Communication to designated inventor
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European search opinion
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Information on Search Strategy
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Supplementary European search report
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Letter concerning the inventor
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Search started
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Notification of forthcoming publication
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Communication to designated inventor
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Communication to designated inventor
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(Electronic) Receipt
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Abstract
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Request for entry into the European phase
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Notification of the recording of a change
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Information on entry into European phase
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Copy of the international search report
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International publication pamphlet
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