Columbia subject headings:
Inventions, Employees'--United States.
Patent extensions--United States.
Patent laws and legislation--United States.
Patents and government-developed inventions--United States.
Research and development contracts--United States.
Harvard subject headings:
Inventions, Employees'--United States.
Patent extensions--United States.
Patent laws and legislation--United States.
Patents and government-developed inventions--United States.
Research and development contracts--United States.
Princeton subject headings: