Domestic and International Patent & Intellectual Property Attorneys

United States Patent and Trademark Office (online database of patents and federal trademark registrations and related background information) 
http://www.uspto.gov

United States Copyright Office 
http://lcweb.loc.gov/copyright

World Intellectual Property Organization 
http://www.wipo.org

The European Patent Office 
http://www.epo.org/patents.html

US Court of Appeals for the Federal Circuit (the court that hears appeals from district courts in patent cases and appeals from the Patent and Trademark Office) 
http://www.cafc.uscourts.gov/

The Patent Act: Title 35 United States Code 
http://www4.law.cornell.edu/uscode/35/

The Copyright Act: Title 17 United States Code 
http://www4.law.cornell.edu/uscode/17/

The Lanham Act: Title 15 United States Code (trademark, unfair competition, dilution, and false advertising)