(The interactive map can be found at http://www. leydesdorff.net/patentmaps/nano_a. htm.) The mapping of overlays utilizing Google Maps needs downloading of the following computer programs: 1. uspto1. exe for the preliminary download at the interface of USPTO (innovative searching at http://patft. uspto.gov/ netahtml/PTO/search-adv. htm); 2. uspto2. exe for the company of the databases from the retrieval under 1; 3.
exe for downloading the varieties of citations for each patent downloaded under 1; uspto2. exe generates an input apply for this regimen; 4. patref5. exe for the generation of the overlays for Google Maps. (5. usappl. exe resembles uspto2. exe, but organizes downloads from the database of patent applications at http://appft1.
html. Patent applications, nevertheless, do not consist of forward citations.) View Details need to be saved in the exact same folder; they are all needed although one does not need to start them as a user (but one can). Files from previous runs might be overwritten; it is recommended to clear the folder before downloading and running these routines in order to avoid confusion with previous runs, etc
.