Assignee
CHAUM DAVID
US·19 granted patents·10 pending applications·2,481 citations·filing 1982–2022
Top patents by PatentIndex Score
29 records- 0199US4926480ACard-computer moderated systemsCHAUM DAVID·Filed 1988·Granted May 15, 1990·507 cites·18 claims
- 0298US10375042B2Precomputed and transactional mixingCHAUM DAVID·Filed 2016·Granted Aug 6, 2019·39 cites·16 claims
- 0397US4529870ACryptographic identification, financial transaction, and credential deviceCHAUM DAVID·Filed 1982·Granted Jul 16, 1985·679 cites·21 claims
- 0493US4991210AUnpredictable blind signature systemsCHAUM DAVID·Filed 1989·Granted Feb 5, 1991·139 cites·4 claims
- 0593US4949380AReturned-value blind signature systemsCHAUM DAVID·Filed 1988·Granted Aug 14, 1990·148 cites·14 claims
- 0690US5276736AOptionally moderated transaction systemsCHAUM DAVID·Filed 1992·Granted Jan 4, 1994·159 cites·8 claims
- 0789US7516891B2Ballot integrity systemsCHAUM DAVID·Filed 2006·Granted Apr 14, 2009·40 cites·23 claims
- 0883US5131039AOptionally moderated transaction systemsCHAUM DAVID·Filed 1990·Granted Jul 14, 1992·132 cites·9 claims
- 0978US10050786B2Random sample electionsCHAUM DAVID·Filed 2017·Granted Aug 14, 2018·3 cites·5 claims
- 1078US8123114B2Hidden-code voting and marking systemsCHAUM DAVID·Filed 2009·Granted Feb 28, 2012·1 cites·2 claims
- 1176US7210617B2Secret-ballot systems with voter-verifiable integrityCHAUM DAVID·Filed 2003·Granted May 1, 2007·37 cites·10 claims
- 1275US4914698AOne-show blind signature systemsCHAUM DAVID·Filed 1989·Granted Apr 3, 1990·180 cites·1 claims
- 1374US6318137B1Electronic lock that can learn to recognize any ordinary keyCHAUM DAVID·Filed 1999·Granted Nov 20, 2001·124 cites·15 claims
- 1472US4947430AUndeniable signature systemsCHAUM DAVID·Filed 1987·Granted Aug 7, 1990·159 cites·48 claims
- 1567US11403903B2Random sample electionsCHAUM DAVID·Filed 2018·Granted Aug 2, 2022·0 cites·12 claims
- 1667US8162215B2Scan-integrity election systemsCHAUM DAVID·Filed 2008·Granted Apr 24, 2012·3 cites·5 claims
- 1765US11184338B2Precomputed and transactional mixingCHAUM DAVID·Filed 2019·Granted Nov 23, 2021·0 cites·16 claims
- 1863US2023006836A1Multi-party and multi-use quantum resistant signatures and key establishmentCHAUM DAVID·Filed 2020·Application pending·0 cites
- 1962US4987593AOne-show blind signature systemsCHAUM DAVID·Filed 1990·Granted Jan 22, 1991·131 cites·13 claims
- 2061US2012132713A1Hidden-code voting and marking systemsCHAUM DAVID·Filed 2012·Application pending·0 cites
- 2159US2025013995A1Digital currencyCHAUM DAVID·Filed 2022·Application pending·0 cites
- 2254US2022027912A1Cryptographic physical random objectCHAUM DAVID·Filed 2021·Application pending·0 cites
- 2354US2014172517A1Random sample electionsCHAUM DAVID·Filed 2012·Application pending·0 cites
- 2454US2022076253A1Computation mixingCHAUM DAVID·Filed 2021·Application pending·0 cites
- 2553US10536670B2Video copy prevention systems with interaction and compressionCHAUM DAVID·Filed 2008·Granted Jan 14, 2020·0 cites·8 claims
- 2651US2010149073A1Near to Eye Display System and ApplianceCHAUM DAVID·Filed 2009·Application pending·0 cites
- 2750US2015277123A1Near to eye display and applianceCHAUM DAVID·Filed 2015·Application pending·0 cites
- 2847US2010110368A1System and apparatus for eyeglass appliance platformCHAUM DAVID·Filed 2009·Application pending·0 cites
- 2944US2006218636A1Distributed communication security systemsCHAUM DAVID·Filed 2006·Application pending·0 cites
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Counts cover granted patents and pending applications in the PatentIndex corpus. How scoring works →