Columbia subject headings:
Computer software--Law and legislation--United States.
Computer software--Patents--United States.
Computer software--Patents.
Copyright--Computer programs--United States.
Intellectual property--United States.
Trade secrets--United States.
Harvard subject headings:
Computer software--Law and legislation--United States
Computer software--Patents.
Copyright--Computer programs--United States.
Intellectual property--United States.
Patent laws and legislation--United States.
Trade secrets--United States.
Princeton subject headings:
Computer software--Patents.
Copyright--Computer programs--United States.
Intellectual property--United States.
Patents.
Trade secrets--United States.