RAPAPORT... Cartier filed a lawsuit in federal court against designer Donna Karan for using the word "Tank." Cartier claims that word is under their ownership. Lawyers for the luxury jeweler said Cartier copyrighted "Tank" for watches that were first designed by Louis Cartier.

"It is apparent that defendant's use of the Cartier 'Tank' trademark in connection with watches is willful and intentional and done in willful disregard of Cartier's rights," lawyers wrote.

The suit claimed that Donna Karan used the name "Tank" alongside watches in a previous dispute, but stopped  in 2001 after receiving a cease and desist letter.

Additional reporting by Dialog NewsEdge.