US Patent 9,669,115
United States Patent and Trademark Office
University of Iowa Research Foundation (Iowa City, IA, US)
The invention provides co-crystals and salts of contrast agents as well as methods to use and prepare the co-crystals and salts.
Macgillivray, Leonard R. Co-crystals and salts of contrast agents and imaging. US Patent 9,669,115 filed June 28, 2013 and issued June 06, 2017. https://ir.uiowa.edu/patents/690