Patent No. EP4534231 (titled "Laser Welding Method For Steel Plates And Profile Steel Welded By Laser Welding") was filed by Taiwan Mask on Oct 6, 2023. The application was issued on Sep 17, 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.
Date
Description
Get instant alerts for new documents