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They do not have to publish. The USPTO will publish patents (provisional or full) 18 months after filing, so -- at the very least -- one has to wait 18 months.
by beagle3 9y ago
They do not have to publish. The USPTO will publish patents (provisional or full) 18 months after filing, so -- at the very least -- one has to wait 18 months.
It is also quite possible that facebook collects patents under a different name, e.g. "faceless intellect llc", a wholly owned subsidiary of Facebook. Or they may have bought patents that are essential for ZSTD from someone else who filed them independently.
The conclusion that "zstd remains free of patents" is baseless and made by someone who is not familiar with patent practice.
- Nullabillity 9y ago> They do not have to publish. The USPTO will publish patents (provisional or full) 18 months after filing, so -- at the very least -- one has to wait 18 months. Holy shit, what?! The US patent system means that you can infringe on patents that you had no way to know even existed at that point in time? How the fuck can someone look at this policy and think that it's in any way reasonable?!
- beagle3 9y agoThey also publish at grant of course. It's just that it rarely takes less than 2 years from filing to grant so first publication by USPTO is usually pre-approval, 18 month from filing