Markham, Ontario-based CoolBrands International, marketer of branded frozen novelties and frozen dessert products, has purchased the business and assets of Chipwich. Chipwich, said Coolbrands, created the adult premium ice cream novelty category in 1981 when it introduced the Chipwich Ice Cream Cookie Sandwich. The Piermont, NY-based firm makes the product in a variety of flavours, and it is sold individually wrapped or packed six to a box for supermarkets. Market penetration is especially strong for single serve sales, including nationwide distribution at 7-Eleven convenience stores in the US.