The trademark AQUACHEK was filed by HACH COMPANY, a U.S. corporation (the "Applicant"). The application was published for oppositions on July 23, 2001, and received one opposition filed on October 17, 2001 by Merck KGaA on Likelihood of confusion. the opponent was represented by BEST RECHTSANWÄLTE PARTMBB and proceedings were handled in English, and the oppositon was dismissed by the Euorpean Union Intellectual Property Office with decision issued October 17, 2001
The application was filed in Dutch, and Dutch was also language of all opposition proceedings (English was selected as the second language).
Two renewals of the trademark were recorded, one on December 9, 2010, and the other one on September 22, 2020.
Change of name and address of the trademark registration was recorded on December 12, 2000. A transfer of the trademark registration was recorded on June 18, 2007. Change of name and address of the trademark registration was recorded on June 27, 2013.