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- Esp@cenet
- Depatisnet
- WIPO PatentScope
- Patentlens
- FreePatentsOnline (US, EP, JP, WO)
- SumoBrain (US, EP, JP, WO)
- IPEXL (WO, US, CA, EP, UK, FR, CN, JP, KR, HK, SG)
- PatMedia – visuelle Suche (EP)
- PubChem
- PatFT / AppFT (US)
- J-PlatPat (JP)
- Kipris (KR)
- DPMAregister (DE)
- EPRegister(EP)
- USRegister (US)