- How to Conduct a Preliminary Patent Search. Created by the US Patent and Trademark Office's Patent and Trademark Resource Center Program Office. Explains the benefits of thorough searching and demonstrates how to conduct a patent search using US Patent Classfication in combination with the Cooperative Patent Classification System on the freely available US Patents and US Pending Applications databases.
- Searching Espacenet using Cooperative Patent Classification. University of Central Florida Libraries' Patent and Trademark Resource Center. This video explains the importance of patent classification systems and demonstrates how to conduct a patent search step-by-step using the Cooperative Patent Classification System on the free global patent database, Espacenet.