Genencor International, Inc announced today it has acquired an exclusive license to Ecolab Inc's Stone-Eze patents for use throughout Europe. The patents broadly cover processes for producing a stone-washed effect in denim or other cellulosic fabrics using cellulase. Genencor's patent exclusivity means its cellulase enzymes are the only products licensed for use throughout Europe in the stonewashing process for denim and other cellulosic fabrics. Genencor IndiAge and Primafast cellulase enzymes and enzyme compositions, used to create a stone-washed appearance to cellulosic fabrics or garments, are covered under the agreement.