Delphion Patent
Database (pay service)
DIALOG Web (pay service)
Esp@cenet HomePage @ The
European Patent Office
Intellectual Property Data
Collections
Latipat-Patent
database for 18 Latin American countries (in Spanish)
MicroPatent (pay
service)
PCT Electronic Gazette
PAJ -
Patent Abstracts Japan
STN
International Databases (pay service)
Surf IP
USPTO Patent
Search
yet2.com
DEPATISnet
SIMBA Italian patent database
service, currently only available to Italian nationals. Soon to be available to
non-nationals and with an English interface.
Free Patents
Online - free searching and pdf downloads of US patent documentation.
Includes a list of "Crazy Patents".
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