How does getting a patent help with challenging another patent which predates yo... | Hacker News

Hacker Newsnew | past | comments | ask | show | jobs | submit

prodigal_erik on Oct 8, 2011 | parent | context | favorite | on: Apple Files Patent for In-App Purchases

How does getting a patent help with challenging another patent which predates yours? Doesn't Apple instead need prior art from 2006?

jarin on Oct 8, 2011 [–]

You can get a patent on an invention that improves on an existing patent. Looks like that's what they're doing.

Guidelines | FAQ | Lists | API | Security | Legal | Apply to YC | Contact