DEC Ethernet devices
The DEC ethernet PHY line of devices were owned by Intel in 98.
I was working with those devices and Intel issued a revised device that did not meet the PCI spec and which caused a great deal of pain for the company I was with at the time.
That was in the days prior to automatic PCN (product change notices) being issued. I found out after managing to find a blurb (via google when they were still a 'do no evil' company) that stated the problem.
That line was probably offloaded to Intel prior to the main company being sold.