Chaum; David
Patent Applications and Registrations
Patent applications and USPTO patent grants for Chaum; David.The latest application filed is for "eyeglass device with touch sensor and method of use".
Company Profile
4.34.32
Trademarks
- Chaum; David - Sherman Oaks CA US
- Chaum; David - Sherman Oak CA
- CHAUM; David - Serman Oaks CA
- Chaum, David - Palo Alto CA
- Chaum; David - Amsterdam NL-1017 NL
Trademarks
Patent Activity
| Patent | Date |
|---|---|
| Random sample elections Grant 11,403,903 - Chaum August 2, 2 | 2022-08-02 |
| Eyeglass Device With Touch Sensor And Method Of Use App 20220163806 - CHAUM; David | 2022-05-26 |
| Computation Mixing App 20220076253 - CHAUM; David | 2022-03-10 |
| Precomputed And Transactional Mixing App 20220078172 - CHAUM; David | 2022-03-10 |
| Cryptographic Physical Random Object App 20220027912 - CHAUM; David | 2022-01-27 |
| Precomputed and transactional mixing Grant 11,184,338 - Chaum November 23, 2 | 2021-11-23 |
| Video copy prevention systems with interaction and compression Grant 10,536,670 - Chaum Ja | 2020-01-14 |
| Precomputed And Transactional Mixing App 20190297062 - CHAUM; David | 2019-09-26 |
| Precomputed and transactional mixing Grant 10,375,042 - Chaum | 2019-08-06 |
| Random Sample Elections App 20190005756 - CHAUM; David | 2019-01-03 |
| Random sample elections Grant 10,050,786 - Chaum August 14, 2 | 2018-08-14 |
| Precomputed And Transactional Mixing App 20180139190 - Chaum; DAVID | 2018-05-17 |
| Random Sample Elections App 20170200338 - CHAUM; David | 2017-07-13 |
| Near To Eye Display And Appliance App 20150277123 - CHAUM; David ; et al. | 2015-10-01 |
| Random Sample Elections App 20140172517 - Chaum; David | 2014-06-19 |
| Hidden-code Voting And Marking Systems App 20120132713 - CHAUM; David | 2012-05-31 |
| Scan-integrity election systems Grant 8,162,215 - Chaum April 24, 2 | 2012-04-24 |
| Hidden-code voting and marking systems Grant 8,123,114 - Chaum February 28, 2 | 2012-02-28 |
| Near to Eye Display System and Appliance App 20100149073 - Chaum; David ; et al. | 2010-06-17 |
| System And Apparatus For Eyeglass Appliance Platform App 20100110368 - Chaum; David | 2010-05-06 |
| Video Copy Prevention Systems With Interaction And Compression App 20100061553 - Chaum; David | 2010-03-11 |
| Hidden-code voting and marking systems App 20090308922 - Chaum; David | 2009-12-17 |
| Ballot integrity systems Grant 7,516,891 - Chaum April 14, 2 | 2009-04-14 |
| Scan-integrity election systems App 20080272194 - Chaum; David | 2008-11-06 |
| Ballot integrity systems App 20070095909 - Chaum; David | 2007-05-03 |
| Secret-ballot systems with voter-verifiable integrity Grant 7,210,617 - Chaum May 1, 2 | 2007-05-01 |
| Distributed communication security systems App 20060218636 - Chaum; David | 2006-09-28 |
| Wine vessel system App 20060191419 - Spoljaric; Edward Storm ; et al. | 2006-08-31 |
| Multi-purpose transaction card system Grant 6,718,314 - Chaum , et al. April 6, 2 | 2004-04-06 |
| Electronic lock that can learn to recognize any ordinary key App 20030205070 - Chaum, David | 2003-11-06 |
| Secret-ballot systems with voter-verifiable integrity App 20030158775 - Chaum, David | 2003-08-21 |
| Random number generator security systems App 20030104859 - Chaum, David | 2003-06-05 |
| Multi-purpose transaction card system App 20030097344 - Chaum, David ; et al. | 2003-05-22 |
| Multi-purpose transaction card system Grant 6,434,238 - Chaum , et al. August 13, 2 | 2002-08-13 |
| Electronic lock that can learn to recognize any ordinary key Grant 6,318,137 - Chaum November 20, 2 | 2001-11-20 |
| Physical and digital secret ballot systems App 20010034640 - Chaum, David | 2001-10-25 |
| Integrated circuit Grant 6,035,380 - Shelton , et al. March 7, 2 | 2000-03-07 |
| Partitioned information storage systems with controlled retrieval Grant 5,956,400 - Chaum , et al. September 21, 1 | 1999-09-21 |
| Limited-traceability systems Grant 5,712,913 - Chaum January 27, 1 | 1998-01-27 |
| Private signature and proof systems Grant 5,493,614 - Chaum February 20, 1 | 1996-02-20 |
| Automatic real-time highway toll collection from moving vehicles Grant 5,485,520 - Chaum , et al. January 16, 1 | 1996-01-16 |
| Compact endorsement signature systems Grant 5,434,919 - Chaum July 18, 1 | 1995-07-18 |
| Desinated-confirmer signature systems Grant 5,373,558 - Chaum December 13, 1 | 1994-12-13 |
| Optionally moderated transaction systems Grant 5,276,736 - Chaum * January 4, 1 | 1994-01-04 |
| Optionally moderated transaction systems Grant 5,131,039 - Chaum July 14, 1 | 1992-07-14 |
| Unpredictable blind signature systems Grant 4,991,210 - Chaum February 5, 1 | 1991-02-05 |
| One-show blind signature systems Grant 4,987,593 - Chaum January 22, 1 | 1991-01-22 |
| Returned-value blind signature systems Grant 4,949,380 - Chaum August 14, 1 | 1990-08-14 |
| Undeniable signature systems Grant 4,947,430 - Chaum August 7, 1 | 1990-08-07 |
| Card-computer moderated systems Grant 4,926,480 - Chaum | 1990-05-15 |
| One-show blind signature systems Grant 4,914,698 - Chaum April 3, 1 | 1990-04-03 |
| Cryptographic identification, financial transaction, and credential device Grant 4,529,870 - Chaum July 16, 1 | 1985-07-16 |
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