The Last MPEG-4 Visual Patent Has Expired

The Last MPEG-4 Visual Patent Has Expired

最后一件 MPEG-4 Visual 专利已过期

The last of the MPEG-4 Part 2 patents expired today. While the US and EU patents around MPEG-4 Part 2 expired in recent years, until today there remained one patent still active in Brazil. MPEG-4 Part 2 的最后一件专利已于今日到期。虽然美国和欧盟关于 MPEG-4 Part 2 的专利在近年内已陆续过期，但直到今天，巴西仍有一件专利处于有效期内。

This final patent was BRPI0109962B1 - “process for storing and processing image information from successive images over time”. The VIA Licensing Alliance confirmed that this was the final MPEG-4 Visual patent and indeed expiring today, 19 July 2026. 这最后一件专利是 BRPI0109962B1，其名称为“一种用于存储和处理随时间变化的连续图像信息的过程”。VIA Licensing Alliance 已确认这是最后一件 MPEG-4 Visual 专利，并确实于今日（2026 年 7 月 19 日）到期。

Great to see this day finally realized given the prevalence of MPEG-4. 鉴于 MPEG-4 的广泛普及，很高兴看到这一天终于到来。