Xerox seems to have missed losing their trademark [1]. There's a lawsuit filed about Google's trademarked name in arizona [2]. A list of genericized trademarks is available at [3].
Ahh, litigation... 1: http://prawfsblawg.blogs.com/.a/6a00d8341c6a7953ef0134851907f7970c-popup 2: http://www.digitaltrends.com/web/man-launches-lawsuit-to-have-googles-trademark-on-its-own-name-undone/ 3: http://en.wikipedia.org/wiki/List_of_generic_and_genericized_trademarks
