Online Reference Materials Visit our IP Resources Library! We offer a variety of online reference materials that will support your trademark research efforts. You can access this information online, 24 hours a day, by clicking on the IP Resources link on the navigation bar. Under "Trademark Fundamentals" you will find materials needed to conduct trademark searches like the Trademarkscan Design Code Manual, the USPTO Status Code Manual and the International Classification of Goods and Services. Check out the other links in the Library to find Law Firms, Law Schools, Forms, Laws & Treaties, etc. Go to the IP Resources