Resources

Constitution

U.S. Const., art. I, sec. 8, cl. 8.  “The Congress shall have power . . . To promote the progress of science and useful arts, by securing for limited times to authors and inventors the exclusive right to their respective writings and discoveries . . . ”

Statutes

Title 35 of the United States Code (35 U.S.C.) deals with Patents

Regulations

Title 37 of the Code of Federal Regulations deals with Patents, Trademarks, and Copyrights 
Manual of Patent Examining Procedure (MPEP) 
Trademark Manual of Examining Procedure (TMEP)

Federal Court Decisions

U.S. Supreme Court 
U.S. Court of Appeals for the Federal Circuit

Administrative Decisions

Board of Patent Appeals and Interferences 
Trademark Trial and Appeal Board

Patent Databases

Google Patents 
U.S. Patent and Trademark Office Patent Database 
European Patent Office Patent Database 
World Intellectual Property Organization Patent Application Database

Trademark Databases

U.S. Patent and Trademark Office Trademark Database 
European Union Trademark Database 
World Intellectual Property Organization Patent Application Database