Inventor · disambiguated record
Clifford L. Hansen
Also filed as: HANSEN CLIFFORD L · HANSEN CLIFFORD LEE
4 granted patents·3 citations·filing 2011–2021
60Inventor score
Top patents by PatentIndex Score
4 records- 0164US8639938B2Personal identification number security enhancementARNOLD TODD W·Filed 2011·Granted Jan 28, 2014·2 cites·11 claims
- 0260US9235702B2Personal identification number security enhancementIBM·Filed 2012·Granted Jan 12, 2016·1 cites·7 claims
- 0343US11764972B2Generating a hybrid security certificate using multiple cryptosystemsIBM·Filed 2021·Granted Sep 19, 2023·0 cites·11 claims
- 0442US12095917B2Securely transporting a root key using a privately/public key pair for user-controlled authentication of nodes in a hardware security module clusterIBM·Filed 2021·Granted Sep 17, 2024·0 cites·25 claims
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Identity basis: PatentsView inventor disambiguation (2025Q4-odp release). How scoring works →