Patents are generally not written by engineers. They are written by patent attorneys / outside consultants. The engineers have a few conversations with the attorneys, and share technical material (in this case, something specific about cache coherence). The attorneys/consultants then generate a hundred pages of patent-ese scaffolding.

The plagiarized content:

1. Is not what is being patented here.

2. Is not created by Intel engineers (or likely even Intel employees). They're busy designing chips.