In a trademark dispute between OÜ Acerra and AS Tallinna Karastusjoogid, the Estonian Ministry of Economic Affairs and Communications determined that the word Tarhun is a descriptive term for the drink and is thus not trademarkable under laws of the Republic of Estonia. In Estonia, it's possible to find both the Estonian-made and Russian-made Tarhun drinks from the same soft drinks aisle, as the soft drink is distilled and bottled in both countries, though by different companies and with different recipes. In 2014 Ryan Wood bought the rights for using the Tarhun trademark in USA.
- The Georgian Feast by Darra Goldstein p.43, University of California Press, 1999
- "ruling 808-o" (PDF). Majandus- ja Kommunikatsiooniministeeriumi Tööstusomandi Apellatsioonikomisjon. Majandus- ja Kommunikatsiooniministeerium. 28 April 2006.
- სახსრებისა და წელის ტკივილს ტარხუნა მოგიხსნით, 2014