Searching the Patent Literature: Patent databases

US Patent and Trademark Database  (USPTO)

Google Patents

SciFinder

World Intellectual Property Organization (WIPO)

European Patent Office esp@cenet

Patent Abstracts of Japan

Candadian Intellectual Property Office

Derwent World Patent Index

Inpadoc Patent Families

For more information on international patent databases see:

http://guides.library.ucsb.edu/content.php?pid=55900&sid=409029