esp@cenet Delphion Depanet - WO
Electronic Gazette
Depatis
esp@cenet Delphion Depanet - EP EPOLINE
DOE STO Delphion US-Patentamt Software Patent Institute
freepatentsonline
esp@cenet Delphion Depanet - PAJ Japanisches Amt PATOLIS Datenbank (Free DEMO“ Version)
inpi esp@cenet
esp@cenet
GB-Patent Office
ESpacenet
CIPO
SurfIP.gov.sp
esp@cenet Jopal(WIPO) Depanet - EU SurfIP.gov.sp Global Patent Searching (tip.net.au)