The Patent and Trademark Resource Center at Minneapolis Central Library offers access to powerful search tools for researching patents and trademarks. Oneonone assistance is available via video conference or telephone.The LegalCORPS Inventor Assistance Program (IAP) provides low-income inventors equitable access to the legal advice necessary to bring inventions to market. MN Lawyer Referral shares everything you need to know if you are looking to submit for a patent. For more info regarding laws on patents, call today! Resources are available for Minnesota residents to help inventors and entrepreneurs learn more about protecting their intellectual property. From the USPTO, here are some helpful tips to consider when you search for patents. Patent and Trademark Resource Centers (PTRCs). PTRCs. Online resources and events related to law, legal help and finding a lawyer, including the Hennepin County Law Library. Need help completing the application form?