Teaneck, NJ…By all accounts the number of unauthorized kosher symbols has declined in the past few years, although it has not disappeared entirely. A high-profile case reminds kosher consumers that despite improvements, unauthorized uses of kosher symbols still exist. The Kof-K kosher certification agency is suing JetBlue Airways Corp in New Jersey federal court charging that the airline unlawfully used its trademarks to advertise food it had not certified. According to the lawsuit, New York-based JetBlue sells an artichoke snack that it says is certified by Kof-K Kosher Supervision which it is not. A JetBlue menu lists artichoke snacks in its "Mediterranean-inspired snack box" as being "Kosher certified by KOF-K Kosher Supervision." The menu also offers several other snacks it says were kosher-certified by other agencies.