United States Patent & Trademark Office (USPTO) > This site contains basic information regarding the patent and trademark processes. In addition, users can search the USPTO patent and trademark databases and check the status of pending patent and trademark applications.
United States Copyright Office > This site contains basic information regarding copyrights. In addition, users can search copyright records or register a work via eCO (Electronic Copyright Office).
Trademark Trial and Appeal Board (TTAB) > The TTAB is an administrative board that hears and decides adversary proceedings between two parties, namely, trademark oppositions and cancellations. The TTAB also handles interference and concurrent use proceedings, as well as appeals of final refusals issued by USPTO Trademark Examining Attorneys within the course of the prosecution of trademark applications.
World Intellectual Property Organization (WIPO) > A wealth of material regarding international intellectual property protection is available on this site, and in particular with regard to international patent applications filed under the Patent Cooperation Treaty (PCT) and international trademark applications filed under the Madrid Protocol.
International Trademark Association (INTA) > INTA is a not-for-profit membership association dedicated to the support and advancement of trademarks and related intellectual property as elements of fair and effective commerce. Today, 5,700 trademark owners, professionals and academics from more than 190 countries make INTA a powerful network of powerful brands.
Google Patents > Google has combined its powerful search engine with USPTO content in order to make over 7 million U.S. patents available to the public.
Google Scholar > Users can search across many disciplines and sources: articles, theses, books, abstracts and court opinions, from academic publishers, professional societies, online repositories, universities and other web sites.
PubMed > Federal medical and biotech related non-patent literature search engine.