Assignee

VSIS INC

US·2 granted patents·84 citations·filing 1999–1999

Technology mixG01S2

Top patents by PatentIndex Score

2 records

0171US6169958B1Ionospheric correction for single frequency GPS receivers using three satellitesVSIS INC·Filed 1999·Granted Jan 2, 2001·74 cites·9 claims
0232US6163295AIonospheric correction for single frequency GPS receivers using two satellitesVSIS INC·Filed 1999·Granted Dec 19, 2000·10 cites·9 claims

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