Patents

Derwent Innovations Index
Provides access to more than 14,800,000 patents with links to cited and citing patents, cited articles, and full-text patent data sources. Access for students and employees at Aarhus University

Esp@cnet 
Free patent information on the internet

USPTO Patents Database 
Web site for searching, viewing, and analyzing patent documents. Free access to a wide variety of data collections and patent information

Information (and links) on patents 
(information on Europen and US patents)

Information (and links) on standards 
(information on Danish Standards, ISO, ASTM)