Please use this identifier to cite or link to this item: http://hdl.handle.net/10419/104508
Authors: 
von Graevenitz, Georg
Wagner, Stefan
Harhoff, Dietmar
Year of Publication: 
2009
Series/Report no.: 
Discussion Papers in Business Administration 2009-09
Abstract: 
The existing literature identifies patent thickets indirectly. In this paper we propose a novel measure based on patent citations which allows us to measure the density of patent thickets directly. We discuss the algorithm which generates the measure and present descriptive results validating it. Moreover, we identify technology areas which are particularly impacted by patent thickets.
Subjects: 
patenting
patent thickets
patent portfolio races
complexity
JEL: 
L13
L20
O34
Persistent Identifier of the first edition: 
Document Type: 
Working Paper

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