Is it posibble to use module pattern for more objects

var modularpattern = (function () {
var sum = 0;

return {
    add: function () {
        sum = sum + 1;
        return sum;
    },

  }
} ());
var c = modularpattern;
c.add();   // 1
var d = modularpattern;
d.add();   //  2
console.log(modularpattern.add());    // alerts: 3

Is it possible to have more objects not only one? I want to have private fields but at the same time also having more that just one object?