''What are the number of authors? (0-9)''
''How many authors are repeat authors?''
=Individual Terms=
'''Code for:'''
''cross-licensing''
''patent pools''
''patent clearinghouses''
''patent collectives''
''FRAND / RAND''
''patent intermediaries (include auctions, brokers, etc.)''
''NPEs Non-Participating Entities''
''technology standards''
''SSOs (standard setting organizations)''
''patent trolls''
''submarine patents''
''SEPs (Standard Essential Patents)''
''ever-greening''
''blocking''
''cites: Shapiro (2001), "Navigating the patent thicket"''
''cites: Heller and Eisenberg (1998?), "Anti-commons something..."''
''cites: Heller (1997?), "Something..."''