Patent No. EP3767918 (titled "Method And System For Authenticating A Purchase By A User") was filed by Invitee Music & Sport on Jul 14, 2020. The application was issued on Jan 17, 2024.

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 |
|---|---|---|
| AIR TRANSPORT ASSOCIATION | Oct 17, 2024 | HEINONEN |
| BUNDESDRUCKEREI | Oct 17, 2024 | STEFFENS |
| ETAT BELGE | Oct 17, 2024 | GEVERS PATENTS |
| THE STATE OF THE NETHERLANDS MINISTRY OF THE INTERIOR AND KINGDOM RELATIONS | Oct 17, 2024 | SIMMONS & SIMMONS |
| THE STATE OF THE NETHERLANDS MINISTRY OF THE INTERIOR AND KINGDOM RELATIONS | Oct 17, 2024 | TAYLOR WESSING NETHERLANDS |
| DIE SCHWEIZERISCHE EIDGENOSSENSCHAFT VERTRETEN DURCH DAS BUNDESAMT FUR POLIZEI FEDPOL | Oct 15, 2024 | FREI PATENT ATTORNEYS |
| IDEMIA PUBLIC SECURITY FRANCE IDEMIA INDENTITY & SECURITY FRANCE | Oct 3, 2024 | IPS |
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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