Assignee
AMERICAN EXPRESS CO
US·6 granted patents·1 pending application·1,202 citations·filing 1975–2005
Top patents by PatentIndex Score
7 records- 0197US4453074AProtection system for intelligent cardsAMERICAN EXPRESS CO·Filed 1981·Granted Jun 5, 1984·531 cites·19 claims
- 0295US5412192ARadio frequency activated charge cardAMERICAN EXPRESS CO·Filed 1993·Granted May 2, 1995·456 cites·1 claims
- 0391USD249900STravelers check dispensing machineAMERICAN EXPRESS CO·Filed 1977·Granted Oct 10, 1978·27 cites·1 claims
- 0489US4299073AMachine and method for packaging travelers checksAMERICAN EXPRESS CO·Filed 1979·Granted Nov 10, 1981·47 cites·3 claims
- 0587US4796292AData transmission over the public switched networkAMERICAN EXPRESS CO·Filed 1987·Granted Jan 3, 1989·114 cites·23 claims
- 0673US4065862AMethod and apparatus for synchronizing data and clock signalsAMERICAN EXPRESS CO·Filed 1975·Granted Jan 3, 1978·27 cites·20 claims
- 0746US2007011088A1Assured Payments for Health Care PlansAMERICAN EXPRESS CO·Filed 2005·Application pending·0 cites
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Counts cover granted patents and pending applications in the PatentIndex corpus. How scoring works →