"National Research Council, Committee on Intellectual Property Rights in the Knowledge-Based Economy, A Patent System for the 21st Century (S. Merrill, R. Levin & M. Myers eds. 2004) (full-text)."@en . . "A Patent System for the 21st Century"@en . "National Research Council, Committee on Intellectual Property Rights in the Knowledge-Based Economy, A Patent System for the 21st Century (S. Merrill, R. Levin & M. Myers eds. 2004) (full-text)."@en . . .