Patent and Trademark Offices
United States Patent & Trademark Office
http://www.uspto.gov
European Patent Office
http://www.european-patent-office.org
World Intellectual Property Organization
http://www.wipo.org
Searchable Patent Databases
http://www.uspto.gov/patft/index.html
http://ep.espacenet.com
http://www.wipo.int/ipdl/en/#
http://www.delphion.com
http://www.micropat.com
Courts and Legal Precedent
Court of Appeals for the Federal Circuit
http://www.fedcir.gov
Federal Courts
http://www.uscourts.gov