I wrote about the KFTC action recently, in which the KFTC fined Qualcomm about $850 million and ordered it to stop its abusive licensing practices. The KFTC found that Qualcomm dominated the pool of essential patents for the CDMA cellular phone standard, and it used those patents to monopolize the market for CDMA chipsets:
It refused to license to competitors, even though as part of the standard-setting process, Qualcomm had committed to license to anyone on fair and reasonable terms
It forced handset companies to separately take a patent license if they wanted to buy Qualcomm chips. That was on top of the purchase price for the chips.
It forced handset companies to give Qualcomm licenses to their own patents, for free.
