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CHAUM DAVID

Overview
  • Total Patents
    75
  • GoodIP Patent Rank
    157,831
  • Filing trend
    ⇧ 200.0%
About

CHAUM DAVID has a total of 75 patent applications. It increased the IP activity by 200.0%. Its first patent ever was published in 1982. It filed its patents most often in WIPO (World Intellectual Property Organization), United States and Australia. Its main competitors in its focus markets control, digital networks and it methods for management are GO DADDY GROUP INC, NTI INC and PARSONS ROBERT.

Patent filings in countries

World map showing CHAUM DAVIDs patent filings in countries

Patent filings per year

Chart showing CHAUM DAVIDs patent filings per year from 1900 to 2020

Top inventors

# Name Total Patents
#1 Chaum David 73
#2 Rogers John R 6
#3 Mossberg Thomas W 5
#4 Ferguson Niels 2
#5 Ferguson Niels Thomas 1
#6 Shelton Christopher David 1
#7 Schilder Marius Paul Michiel 1
#8 Mayerwieser Wolfgang 1
#9 Hoek Jelte Van Der 1
#10 Posch Reinhard 1

Latest patents

Publication Filing date Title
WO2020037015A1 Random sample elections
US2019005756A1 Random sample elections
EP3568840A1 Random sample elections
US2017200338A1 Random sample elections
US2018139190A1 Precomputed and transactional mixing
EP2721587A2 Random sample elections
WO2012033535A2 Remote voting with integrity and resistance to improper influence
US2010149073A1 Near to Eye Display System and Appliance
CN103119512A Near to eye display system and appliance
WO2009131626A2 Proximal image projection systems
WO2009126264A2 Proximal image projection system
EP2350985A1 Hidden-code voting and marking systems
US2008272194A1 Scan-integrity election systems
WO2008134014A2 Video copy prevention systems with interaction and compression
US2007095909A1 Ballot integrity systems
WO2007033084A2 Ballot integrity systems
US2006218636A1 Distributed communication security systems
WO2006093897A2 Wine vessel system
US7210617B2 Secret-ballot systems with voter-verifiable integrity
AU8073501A Transparent-coin electronic money system