An authoritative international publication Managing IP published the results of the annual guide IP Stars Survey 2017. According to the results of the survey Doubinsky & Osharova is recommended as the best one in all categories relating to trademarks (Trademark Contentious, Trademark Filing & Prosecution, Patent Filing & Prosecution and Patent Contentious).
IP Stars Survey is a reputable global resource about intellectual property news and analysis. Its products and publications cover all the aspects of the intellectual property law and practice, being very interesting for owners of intellectual property.
Full results of the survey may be found at: https://www.ipstars.com/countries/ukraine/ua#/rankings