The trademark Bioferon was filed by Rentschler Biotechnologie GmbH, a corporation established under the laws of the Federal Republic of Germany (the "Applicant"). The application was published for oppositions on February 4, 2001, and received one opposition filed on May 3, 2001 by Pharma Nord ApS on Likelihood of confusion. the opponent was represented by CHAS. HUDE A/S and proceedings were handled in English, and the oppositon was dismissed by the Euorpean Union Intellectual Property Office with decision issued May 3, 2001
The application was filed in German, and German was also language of all opposition proceedings (English was selected as the second language).
Two renewals of the trademark were recorded, one on May 10, 2010, and the other one on October 13, 2020.
Change of name and address of the trademark registration was recorded on March 24, 2006. Change of name and address of the trademark registration was recorded on July 1, 2007. Change of name and professional address of the trademark registration was recorded on March 28, 2016. Change of name and professional address of the trademark registration was recorded on May 19, 2016. Change of name and professional address of the trademark registration was recorded on September 6, 2016. Change of name and professional address of the trademark registration was recorded on December 4, 2018.