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Dear colleagues, 

 

In collaboration with others, I now made more systematically routines
available at http://www.leydesdorff.net/software/uspatents that allow in
addition to geographical mapping
<http://www.leydesdorff.net/software/patentmaps/index.htm>  and mapping in
terms of Intern. Patent Classifications <http://www.leydesdorff.net/ipcmaps>
to download the cited and citing patents in the USPTO domain (that is, since
1975).

 

Please, feel free to feedback with suggestions for improvements. 

 

Best wishes,

Loet

 

  _____  

Loet Leydesdorff 

Professor, University of Amsterdam
Amsterdam School of Communications Research (ASCoR)

Kloveniersburgwal 48, 1012 CX Amsterdam
 <mailto:[log in to unmask]> [log in to unmask] ;
<http://www.leydesdorff.net/> http://www.leydesdorff.net/ 
Honorary Professor, SPRU,  <http://www.sussex.ac.uk/spru/> University of
Sussex; Visiting Professor, ISTIC,
<http://www.istic.ac.cn/Eng/brief_en.html> Beijing;
http://scholar.google.com/citations?user=ych9gNYAAAAJ
<http://scholar.google.com/citations?user=ych9gNYAAAAJ&hl=en> &hl=en  

 


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