USPTO
Web |
Available from any computer with Internet access |
Full-text search for
1976-present
Patent number and current classification search for
1790-present
All patents are available
as full-page images |
Web interface simple to use for keyword searching
For many users, pre-1976 searching is not needed
Direct linking to Manual of Classification |
TIFF viewers are required for viewing patents, although if you have a patent number, you can get a PDF version at http://www.pat2pdf.org
Pages must be printed one at a time |
CASSIS |
Patent & Trademark Search Room
Cabell Library
1st floor
|
Current classification for 1790-presemt
Title search for
1969-presesnt
Abstract search for
1991-present
All patents available as images on USAPat and USAApp disks |
Offline -- does not rely on an internet connection
Results can be downloaded or burned to a CD
Sorting capability for search results
Search strategies can be saved to a disk and rerun
Multiple page printing with one click |
Images are not on the BIB disc; viewing patents is a multi-step process
Currency is limited by when the last disc was loaded |
PubWest |
Patent & Trademark Search Room
Cabell Library
1st floor
Password required. Please call 804-828-1103 for an appointment
|
Same as that of the USPTO Web
Additionally:
Full-text for 1920-1976
(OCR database)
Foreign patent search access |
Allows for more robust searching
Multiple page printing with one click
Ability to search across multiple databases (when the fields are shared)
Includes thesaurus for aid in assignee names
|
Much of the text from 1920-1976 contains scanning errors
Search strategies may need to include more wildcards to pick up these errors
A full-text search of the OCR database is not recommended in lieu of a classification search!
Not as user-friendly as the USPTO Web |
