Yahoo is paying dearly for its decision to take its chances at trial against Creative Internet Advertising Corp. last year.

Yahoo, which was represented by Howrey, lost before a jury and was penalized to the tune of $6.6 million for infringing on Creative’s IP. Then in a final judgment signed this week (.pdf), the Eastern District of Texas court awarded enhanced damages for willful infringement of $4.5 million, and another $1.1 million in prejudgment interest, plus supplemental damages. That brings the total haul to $12.4 million for Creative, which is a subsidiary of patent licensing outfit Acacia Research.