It looks like you're using Internet Explorer 11 or older. This website works best with modern browsers such as the latest versions of Chrome, Firefox, Safari, and Edge. If you continue with this browser, you may see unexpected results.
You can use the same method of searching in other patent databases on the web. See the Patent Websites tab in this guide for more databases.
See this excellent tutorial from the US Patent and Trademark Office on the patent search process.
This is a helpful guide from the USPTO which uses their 7 Step Strategy with new CPC code system.
Finding international patents
The European Patent Office maintains a free database of worldwide patents (including U.S. patents) called Espacenet. Images of patents are provided in PDF format, but can only be printed one page at a time.
By Patent Number
Go to Espacenet and enter the patent number (with or without the country code) in the Smart Search box.
Chemical Abstracts Service (CAS) indexes chemical patents from approximately 25 countries and patent organizations. UCSD affiliates may search the online CAS database, Scifinder.
Once you have obtained access to SciFinder Scholar, go to Explore References. To search by patent number, assignee name or inventor name, select Patent and enter the informatio you have. To search by subject, select Research Topic and limit to document type Patent.
Patent workshops are offered quarterly for UCSD faculty and staff through Staff Education & Development. If you are a student and wish to take this workshop, contact me at firstname.lastname@example.org
Ask a Librarian
Please don't hesitate to ask for assistance in finding information. That's what we're here for.