My own pet example is the peanut butter and jelly sandwich patent, which the J.M. Smucker corporation really and truly did sue to enforce: http://www.ipfrontli

My own pet example is the peanut butter and jelly sandwich patent, which the J.M. Smucker corporation really and truly did sue to enforce: http://www.ipfrontline.com/depts/article.aspx?id=14617&deptid=3# http://www.ipfrontline.com/depts/article.aspx?id=14617&d... That link is to a pro-patent website which notes that Smucker failed to enforce the patent (against a grocer from Michigan), after multiple rounds of reexamination, and concludes, of course, that the! system! works! Strangely, they fail to mention the amount of money and time lost to the grocer in fighting Smuckers's overreach...