Below are the most commonly used forms in the District Court of the District of Minnesota. For additional forms, please visit the forms library.Fill out the "ECF Form Declaration of Technical Difficulties. Oneonone assistance is available via video conference or telephone. When to file in Hennepin County Court. Generally, you must file your claim in the county where the person or business you are suing (the defendant) is located. It is the only patent and trademark resource center in Minnesota. Expert staff offer programs and assistance on navigating patenting and trademarking processes. A Notice to File Missing Parts is an office action identifying part(s) of the patent application that was not initially filed but should have been filed.