angularjs with oop inheritance in action

Your guesses sounds perfectly applicable.

You can reuse functionality defined in parent controllers by simply calling methods attached to the parent scope:

HTML

<div ng-controller="ParentCtrl">
    <!-- Something here ... -->
    <div ng-controller="ChildCtrl">
        <!-- Something here ... -->
    </div>
    <!-- Something here ... -->
</div>

JavaScript

function ParentCtrl($scope) {
    $scope.parentMethod = function () {
        //method body
    };
}

function ChildCtrl($scope) {
    $scope.childMethod = function () {
        //functionality
        $scope.parentMethod();
        //functionality
    };
}

If you want to use the JavaScript approach with prototype inheritance you can use:

var myApp = angular.module('myApp',[]);

function Parent($scope) {
    $scope.name="Superhero";    

    $scope.clickParent = function() {
        $scope.name="Clicked from base controller";
    }    
}

function Child($scope, $injector) {

    debugger;
    $injector.invoke(Parent, this, {$scope: $scope});

    $scope.name="Superhero Child";

    $scope.clickChild = function(){
        $scope.clickParent();
    }       
}
Child.prototype = Object.create(Parent.prototype);

http://jsfiddle.net/mhevery/u6s88/12/

For services, for example, you can use:

(function () {

function ParentService(arg1) {
   this.arg1 = arg1;
}

function ChildService(arg1, arg2) {
   ParentService.call(this, arg1);
   this.arg2 = arg2;
}

ChildService.prototype = new ParentService();

app.service('ChildService', ChildService);

}());

Also check this discussion and the blog post about inheritance in AngularJS I posted.