In addition to bringing an action for infringement, owners of trademarks can also bring an action for trademark dilution under either federal or state law. Under federal law, a dilution claim can be brought only if the mark is "famous." In deciding whether a mark is famous, the courts will look to the following factors: (1) the degree of inherent or acquired distinctiveness; (2) the duration and extent of use; (3) the amount of advertising and publicity; (4) the geographic extent of the market; (5) the channels of trade; (6) the degree of recognition in trading areas; (7) any use of similar marks by third parties; (8) whether the mark is registered. 15 U.S.C. § 1125(c). Kodak, Exxon, and Xerox are all examples of famous marks. Under state law, a mark need not be famous in order to give rise to a dilution claim. Instead, dilution is available if: (1) the mark has "selling power" or, in other words, a distinctive quality; and (2) the two marks are substantially similar. Mead Data Central, Inc. v. Toyota Motor Sales, U.S.A., Inc., 875 F.2d 1026 (2d Cir. 1989).
Once the prerequisites for a dilution claim are satisfied, the owner of a mark can bring an action against any use of that mark that dilutes the distinctive quality of that mark, either through "blurring" or "tarnishment" of that mark; unlike an infringement claim, likelihood of confusion is not necessary. Blurring occurs when the power of the mark is weakened through its identification with dissimilar goods. For example, Kodak brand bicycles or Xerox brand cigarettes. Although neither example is likely to cause confusion among consumers, each dilutes the distinctive quality of the mark. Tarnishment occurs when the mark is cast in an unflattering light, typically through its association with inferior or unseemly products or services. So, for example, in a recent case, ToysRUs successfully brought a tarnishment claim against adultsrus.com, a pornographic web-site. Toys "R" Us v. Akkaoui, 40 U.S.P.Q.2d (BNA) 1836 (N.D. Cal. Oct. 29, 1996).
