Though he failed to get exclusive rights to use the term "ginger duck," and there are now countless other restaurants serving the dish, Tien has always been able to rely on a word-of-mouth reputation built up over the years. In the first year after adopting the new name Tien hung out 100 shingles for King Duck, and today has a chain of more than 500 shops.
儘管不再享「薑母鴨」三字的專利，市面上其他品牌的薑母鴨也如雨後春筍般林立，但是靠著長年累積下來的口碑，田正德在改名後的隔年，很快地掛出了一百張帝王食補薑母鴨的招牌，更在今天擁有五百多家的薑母鴨連鎖店。