Delphion
Intellectual Property Network - Allows one to search the
bibliographic and claims portions of U.S. patents beginning with 1974 to the
present it also included European Patent Office and World
Intellectual Property Office (WIPO) database
Derwent
Innovations Index - The Derwent Innovations Index is a
comprehensive database of international patent information from
1963-present.
Canadian Patent
Database- Database provided by the Canadian
Intellectual Property Office (CIPO) This database is having over 75 years of patent descriptions and images.
One can search,
retrieve and study more than 1,300,000 patent documents.
Australian Patent
Database -Maintained by IP Australia. You can search by
patent application number or accepted patent number for data on AU-A, AU-B
and AU-C patent specifications.
