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user539817 wrote:I would think that that patent is very easy to kill off with Coherence itself most likely considerable as a prior art to it...
I was wonder if Oracle Coherence doesn't violate SAP AG's patent on distributed cache - patent 7694065
user539817 wrote:No, I was implying that since Coherence was on the market years before the patent was filed, and I believe even persistence related features were in Coherence before the patent was filed.
Are you implying lengthy litigation by "easy to kill off"?
I just skimmed that link which was posted, it describes something which can be interpreted to be similar to the write-through feature or the cache-aside pattern (which is something building on to Coherence and would not cover Coherence itself as it is just a way of using Coherence).
So either you consider Coherence as a prior art (write-through persistence), or you can not consider the patent to cover Coherence itself (cache-aside).
I would think therefore that it would be pretty easy to invalidate the patent on grounds of existing equivalent prior art. Note, that I am not a lawyer, and this is just an opinion, and not necessarily well-informed at that as I did not do research on that patent itself.