Patent No. EP4172592 (titled "Dual Excitation Beams For Irradiating A Sample In A Flow Stream And Methods For Using Same") was filed by Becton on Apr 9, 2021. The application was issued on Jul 16, 2025.

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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