Classic Product Line Extensions: Diet Coke & Tide

Bruce Mohl on the ongoing effort to trade on well known brand names:

Two huge consumer brands have been busy cloning themselves.

Procter & Gamble Co. rolled out a cold-water version of its blockbuster Tide laundry detergent earlier this month. Coca-Cola Co., meanwhile, unveiled plans to start selling a seventh version of Diet Coke, this time sweetened with Splenda instead of aspartame