Maybe it will help anybody. But only this worked for me:
<p class="product_name">{$product->name|escape:'htmlall':'UTF-8'}</p><br/>
<span id="product_supplier">Supplier: {$product->supplier_name|escape:'htmlall':'UTF-8'}</span><br/>
<span id="product_manufacturer"><a href="{$link->getmanufacturerLink($product->id_manufacturer, $product->link_rewrite)}" title="{l s='more...'}">{$product->manufacturer_name|escape:'htmlall':'UTF-8'}</a></span>