Graphics programming • Re: The last MPEG-2 patent has now expired

According to Google, all 3 were originally filed on almost the same day, but published in May 2010, Sept 2017, and Sept 2020 respectively.

Google only shows the date of the original parent patent.

If you do "patent search" on the site of the Malaysian office and search for "SYNCHRONIZATION ARRANGEMENT FOR A COMPRESSED VIDEO SIGNAL" you'll see they filled the same stuff 4 times in 2001, 2006, 2015, 2017 as "divisional patents" of the 1994 parent patent "DIFFERENTIAL TIME CODE METHOD AND APPARATUS AS FOR A COMPRESSED VIDEO SIGNAL"

Goodness knows how that works, particularly as the Malaysian Government says that their patents expire after 20 years.

The info on the WIPO site for Malaysia mentions it used to be 20 years from filling or 15 years from grant whatever is longer, before 2001.

So I guess they both managed to convince the patent office to rubber stamp their newer applications and convince them the old rules should still
apply in this particular case.
2017 application granted in 2020 + 15 years, does indeed is 2035.

Statistics: Posted by incognitum — Sun Jun 01, 2025 10:17 pm

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