1-wire patent has expired and DS2409

BuGless

Member
It seems that the 1-wire patent by Dallas/Maxim has expired at November 5th, 2010.

Does anyone know about any manufacturers that actually are producing/selling 1-wire products since then which was prohibited earlier by the patent?

Specifically the DS2409 is a component which is near essential to create access-control doors, but which is close to EOL from Maxim; any sane alternatives from other manufacturers?
 
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