PS1.7 Display manufacturer name on product page. ALTERNATIVE WAY: {if isset($product_manufacturer->id)} <a class="PrManufName" href="{$product_brand_url}">{$product_manufacturer->name}</a> {/if} ***********************

override\controllers\front\ProductController.php

<?php

class ProductController extends ProductControllerCore
{
    public function initContent(){

        $manufacturer_name = "";
        if($this->product->id_manufacturer > 0)
        {
            $manufacturer = new Manufacturer($this->product->id_manufacturer, $this->context->language->id);
            $manufacturer_name = $manufacturer->name;
        }

        $this->context->smarty->assign('manufacturer_name', $manufacturer_name);

        parent::initContent();
    }
}

product.tpl

Put the link wherever you want.

<a href="{$link->getManufacturerLink($product.id_manufacturer)}">{$manufacturer_name}</a>