Deris Patents and Trademarks Agency is described by a peer as: "One of the most reputable and respected firms in the market, it does its job very well." As well as an office in Istanbul and two associated offices in Ankara, the firm benefits from a representative office in Cyprus. Deris mostly represents international clients including high-profile names such as Unilever, Kraft Foods, PepsiCo, Nike and a range of others. The firm advised clients in connection with the establishment and implementation of anti-counterfeiting programmes in a range of sectors including tobacco, jewellery, cosmetics, clothing, bags and sunglasses. A further aspect of the firm's services includes periodically published information on recent developments in trade marks, patents, copyright, designs and domain names. In August 2010, Banu Nur Barbur was active in advising Longchamp in criminal infringement actions against counterfeits in the south of Turkey. The case was described by the public prosecutors as the most successful infringement operation of the summer, after almost 3000 counterfeit bags were seized in eight cities. In other work, Kerim E Yardimci and Bukre Tolonay Oturgan advised Hermès in relation to the registration procedure of two handbags before the Turkish Patent Institute. The case was significant as it succeeded in overcoming a previous refusal on the grounds that the handbag styles lacked distinctiveness. The Hermes bag trade marks were the first 3D registrations in Turkey to be accepted through an objection without the case going to the IP courts.