eu_copatenting — European patents and applicant institutions (1978-2015)
- Description
A bipartite network of institutions and the patents they filed, built by D. Vasques Filho and D. R. J. O'Neale from about 2.8 million patents recorded by the European Patent Office (EPO), to study the co-patenting (R&D collaboration) network among institutions, which is its one-mode projection onto the institutions. Nodes are institutions (companies, universities, research institutes, and other patent applicants) and patents, and an edge connects an institution to a patent filed by it; patents filed jointly by several institutions thus connect them. The network has 313,767 institutions, 2,784,313 patents and 2,970,404 edges (there are no multiple edges). Most patents have a single applicant institution.
Vertex properties:
is_patent, which marks the patents (the remaining nodes are institutions);institution_id, the numeric identifier of the institution in the data (-1 for patents);country, the two-letter country code of the institution (empty for patents);patent_number, the EPO publication number of the patent (empty for institutions);year, the year of the patent, between 1978 and 2015 (-1 for institutions).
- Tags
- Economic Production Unweighted Metadata
- Citation
-
- D. Vasques Filho and D. R. J. O'Neale, "The role of bipartite structure in R&D collaboration networks." Journal of Complex Networks 8(4), cnaa016 (2020). 10.1093/comnet/cnaa016 Sci-Hub
- Upstream URL OK
- https://github.com/dvasques83/co-patenting
- Networks
-
Tip: hover over a column header for a description.
Column legend
- $\left<k\right>$
- Mean degree
- $\sigma_k$
- Standard deviation of the degrees
- $\lambda_h$
- Largest eigenvalue of the Hashimoto (non-backtracking) matrix
- $\tau$
- Random walk mixing time
- $r$
- Degree assortativity
- $c$
- Global clustering coefficient
- $\oslash$
- (Pseudo-) diameter
- $S$
- Relative size of the largest component
- NPs
- Node properties
- EPs
- Edge properties
Name Nodes Edges $\left<k\right>$ $\sigma_k$ $\lambda_h$ $\tau$ $r$ $c$ $\oslash$ $S$ Kind Mode NPs EPs gt GraphML GML csv eu_copatenting 3,098,080 2,970,404 1.92 55.05 74.64 29432.09 -0.10 0.00 41 0.60 Undirected Bipartite is_patent institution_id country patent_number year 12.2 MiB 21.6 MiB 20.8 MiB 26.6 MiB