Starting in July 2008, Converse tried to send around 180 cease-and-desist letters to over 30 other companies who Converse says to be violating the Chuck Taylor All Star trademark and selling "knock off look-alike" sneakers.
In October 2014, Converse filed a lawsuit against 30 companies for infringing on its classic sneaker style’s bumper toe, striped midsole and toe cap. The brand argued that companies were violating a common-law trademark by importing “knockoff” sneakers with similar elements. A number of companies settled with converse and they were dropped from the list.[17][18]
While as of February, 2016 the lawsuit is still on going, Charles Bullock, chief administrative judge at the International Trade Commission, has ruled that a lot of brands Converse filed against were violating Converse’s design trademarks, though the notice didn’t specify which trademarks have been violated or by which brands. However, Judge Bullock ruled that while Skechers "Twinkle Toe" brands did share similarities to Converse, twinkle toes were different enough and marketed in a way for it not be mistaken for Chuck Taylor All-Stars [19]