Interactive overlay maps for US patent (USPTO) data based on International Patent Classification (IPC)
Artikel i vetenskaplig tidskrift, 2014

We report on the development of an interface to the US Patent and Trademark Office (USPTO) that allows for the mapping of patent portfolios as overlays to basemaps constructed from citation relations among all patents contained in this database during the period 1976–2011. Both the interface and the data are in the public domain; the freeware programs VOSViewer and/or Pajek can be used for the visualization. These basemaps and overlays can be generated at both the 3-digit and 4-digit levels of the International Patent Classification (IPC) of the world intellectual Property organization (WIPO). The basemaps can provide a stable mental framework for analysts to follow developments over searches for different years, which can be animated. The full flexibility of the advanced search engines of USPTO are available for generating sets of patents and/or patent applications which can thus be visualized and compared. This instrument allows for addressing questions about technological distance, diversity in portfolios, and animating the developments of both technologies and technological capacities of organizations over time.

Map

IPC

USPTO

Patent

Overlay

Författare

Loet Leydesdorff

Universiteit Van Amsterdam

Duncan Kushnir

Chalmers, Energi och miljö, Miljösystemanalys

Ismael Rafols

University of Sussex

CSIC-UPV - Instituto de Gestión de la Innovacion y del Conocimiento (INGENIO)

Scientometrics

0138-9130 (ISSN) 1588-2861 (eISSN)

Vol. 98 3 1583-1599

Styrkeområden

Informations- och kommunikationsteknik

Fundament

Grundläggande vetenskaper

Drivkrafter

Innovation och entreprenörskap

Ämneskategorier

Ekonomi och näringsliv

Systemvetenskap

DOI

10.1007/s11192-012-0923-2

Mer information

Senast uppdaterat

2018-09-06