/usr/share/hwdata/usb.ids, on my system, Intel Corp. seems to have multiple USB vendor IDs:
# cat /usr/share/hwdata/usb.ids | grep 'Intel Corp' 042b Intel Corp. 8086 Intel Corp. 8087 Intel Corp.
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USB Vendor IDs are assigned by the USB Implementers Forum, the usb.ids file is just the way how your system knows about that.
So if Intel has bought 3 vendor IDs (they are 5k$ a piece), it will appear 3 times there.
Also, looking at the specific IDs 8086 and 8087, that looks as if intel tried to make sure nobody uses ID's which look like their microprocessor chip names.