FilterAccountTemplate.php

<?php
/*
*custom/Extension/modules/Accounts/Ext/clients/base/filters/basic/FilerAccountTemplate.php
* Ajay Kumar
*/
$viewdefs['Accounts']['base']['filter']['basic']['filters'][] = array(
 'id' => 'FilterAccountTemplate',
 'name' => 'LBL_FILTER_ACCOUNT_TEMPLATE',
 'filter_definition' => array(  
         'name' => array(
             '$not_equals' => '',
         ),                        
      ),  
 'editable' => true,
 'is_template' => true,
);