Computer Science

• Burk, Dan L. "Patents." Computer Sciences. Ed. Roger R. Flynn. Vol. 4: Electronic Universe. New York: Macmillan Reference USA, 2002. 176-178. Gale Virtual Reference Library. Web. 20 Apr. 2012.  
• Software Patents under United States Patent Law
• Software Patent History

Core Resources

• Google Advanced Patent Search  (PDFs available for free)
• U.S. Patents and Patent Applications -- Full-Text Images  (1790 to date)   
  • FREE AlternaTIFF Viewer for Images

Additional Resources