Links.

Patentrecherche und -information.

• Esp@cenet
• Depatisnet
• WIPO PatentScope
• WIPO PatentScope - National Collections
• Patentlens
• IP.com
• PatMedia - visuelle Suche (EP)
• Boliven (US, WO, EP, JP, KR, INPADOC)
• FreePatentsOnline (US, EP, JP, WO)
• IPEXL (WO, US, CA, EP, UK, FR, CN, JP, KR, HK, SG)
• SumoBrain (US, EP, JP, WO)
• SurfIP (US, SG, WO, EP, CN, CA, KR, PatentMaps, TW, UK, TH, JP)
• FreePatentsOnline SureChem Chemical Search
• PubChem