CompuFill filed three separate suits against grocery retailers Delhaize America, Harris Teeter, and Ingles Markets alleging that the defendants’ automated systems for requesting prescription refills infringe a patent related to online prescription refills (6,728,684).  Last week, the NPE plaintiff asserted the ‘684 patent against HEB Grocery over similar technology. Since May 2011, Compufill has filed a total of five suits, including its first suit against Walgreen (with Costco, CVS, Wal-Mart, and Target) in May 2011. The patent-in-suit was assigned to Compufill by the inventor of the patent in January 2011. 2/14, Middle District of North Carolina, 1:2013cv00137; 2/14, Western District of North Carolina, 1:2013cv00041, 3:2013cv00097. 2/8, Eastern District of Texas, 2:13cv00106.