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I'd love to know how Dropbox managed to patent this: https://patents.justia.com/patent/10282307

To my knowledge:

  1. Software algorithms are not patentable in the US.
  2. Pretty much all programming languages have prior art in this space. Example: https://docs.oracle.com/javase/8/docs/api/java/util/concurrent/ConcurrentHashMap.html dating back to March 2014.
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  • "Software algorithms are not patentable in the US.", mathematical algorithms are not patentable. The use of an algorithm to solve a tangible problem may be patentable. This is not my field, but the fact that concurrent hash maps exist doesn't preclude the possibility of inventing a new way of implementing one.
    – Eric S
    Oct 7, 2022 at 22:32

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