%-------------------------------------------------------------------------------
% UF Sparse Matrix Collection, Tim Davis
% http://www.cise.ufl.edu/research/sparse/matrices/Pajek/patents_main
% name: Pajek/patents_main
% [Pajek network: main NBER US Patent Citations, 1963-1999, cites 1975-1999]
% id: 1513
% date: 2001
% author: B. Hall, A. Jaffe, M. Tratjenberg
% ed: V. Batagelj
% fields: name title A id kind notes aux date author ed
% aux: appyear cat class date subcat year country nodename
% kind: directed weighted graph
%-------------------------------------------------------------------------------
% notes:
% ------------------------------------------------------------------------------
% Pajek network converted to sparse adjacency matrix for inclusion in UF sparse 
% matrix collection, Tim Davis.  For Pajek datasets, See V. Batagelj & A. Mrvar,
% http://vlado.fmf.uni-lj.si/pub/networks/data/.                                
% ------------------------------------------------------------------------------
% Regarding conversion for UF sparse matrix collection: in the original data    
% there are 561,060 weighted edges.  Of this, 117 are duplicates, with identical
% edge weights.  These extraneous edges have been removed in this version.      
% Also, the original data has auxiliary data for all 6,009,554 US Patents in the
% time period.  This patent network has only 240,547 patents, and the auxiliary 
% data (appyear, class, etc.) is matched here to the nodes of the graph.        
% ------------------------------------------------------------------------------
%-------------------------------------------------------------------------------
