Patent No. EP4273464 (titled "Multi-Coil Micro-Channel Heat Exchanger And Air Conditioning Unit") was filed by Trane AIR Conditioning Systems China on Sep 27, 2022. The application was issued on Aug 27, 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