“Over 300 patent cases were filed in the Eastern District in 2008, 50 percent more than the Northern District of California, and far surpassing the filings in California’s Central District, Delaware, the Southern District of New York, the Eastern District of Virginia and Massachusetts. According to some news reports, litigation, including patent litigation, is a significant factor in the local economy.” This is the subject of An interesting article re intellectual property practice in the United States. Free registration required. The premise is that the Eastern District of Texas has a propensity to deny motions to transfer venue. For more information see the SmartRules Guide: Motion to Transfer Venue in the Eastern District of Texas.