Daniel (Dan) N. Christus focuses his practice on the prosecution and litigation of domestic and foreign patents and trademarks, and the performance of due diligence investigations for companies and individuals considering the purchase of businesses. He represents clients in many different technologies and businesses, including the medical products, cosmetics, food and beverage, coated paper, chemical and electronics industries.
With a career in law that spans more than two decades, Dan has successfully represented plaintiffs and defendants in patent, trademark and unfair competition trials and appeals in federal district courts throughout the United States and in the US Court of Appeals for the Federal Circuit. In 2002, Dan played a key role on a trial team that, after a nine-day jury trial in Milwaukee, defeated a patentee's demands for an injunction and more than $100 million in damages.
Dan has successfully represented clients in inter partes and ex parte proceedings before the US Patent and Trademark Office (USPTO)'s Trademark Trial and Appeal Board, and its Board of Appeals and Patent Interferences.
Dan has lectured on domestic and foreign intellectual property issues at universities and professional associations throughout the country.