Searching for patents on specific devices, processes, or inventions can be complex. If you are looking for a specific patent you can search by patent number or inventor’s name. However, if you are exploring what patents exist in certain areas you can search by keyword or browse the classification indexes:
Note that the text of the abstracts and claims sections is not available for patents that were granted prior to August 15, 1978. These patents can only be searched by their patent number, titles, owner or inventor names, or classification.
Patent documents filed prior to October 1, 1989, are classified according to the Canadian Patent Classification (CPC) system. Patent documents filed on or after October 1, 1989, are classified according to the International Patent Classification (IPC) system.
LENS.ORG – search and retrieve the full-text of over 130 million patent documents from over 95 countries. Advanced Boolean functions, structured search, biological search, classification search, filtering and sorting options.
Science Librarian Contacts
Please contact Li Zhang in the Science Library if you require further assistance.