DuPont requests removal of Teflon® from WordNetAfter DuPont bans Teflon from WordNet, the world is their non-sticky oyster

"Dear WordNet users, Lawyers representing DuPont contacted us recently and expressed their dissatisfaction with WordNet’s current entry for Teflon®, which does not indicate that is a registered trademark. To settle, we agreed to remove the relevant entry from the WordNet database (which will be reflected in the all future public releases) and to notify you via the user group of this change."

–DuPont requests removal of Teflon® from WordNetAfter DuPont bans Teflon from WordNet, the world is their non-sticky oyster