It's a dry subject but one that the jury will have to wrestle with as it goes to the heart of some of the patent claims in the case.
When the additional testimony is done, the case will be almost ready for the jury. Judge Koh was due to spend most of Monday afternoon reading aloud the 53-page of jury instructions to the jurors.
Closing arguments are due on Tuesday morning, after which the jury will begin daily deliberations.
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