Nova Patents
DE69636893D1

Tree-based certificate revocation system

Abstract

A method and system for overcoming the problems associated with certificate revocation lists (CRL's), for example, in a public key infrastructure. The invention uses a tree-based scheme to replace the CRL.

Term

Term ended

Expired 1 November 2016, 9.9 years ago.

  1. Priority
  2. Filed
  3. Granted
  4. Expired
  5. Today

124 members in 11 offices

This recordMember, by publication datePriority claim1 more office is in the list below

Priority claims8

Priority claims
DocumentOfficeKindDate
614395United States of AmericaP
614395United States of AmericaP
72961996United States of AmericaA
72961996United States of AmericaA
6143P–––
729619–––
US19950006143P–––
US19960729619–––

Members124

Family members, oldest first
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WO9716905A1World Intellectual Property Organization (WIPO)A1
AU7526996AAustraliaA
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US5717757AUnited States of AmericaA
US5717758AUnited States of AmericaA
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EP0858702A1European Patent Office (EPO)A1
US5960083AUnited States of AmericaA
US6097811AUnited States of AmericaA
US6292893B1United States of AmericaB1
US6301659B1United States of AmericaB1
EP1164746A2European Patent Office (EPO)A2
US2002046337A1United States of AmericaA1
EP0858702B1European Patent Office (EPO)B1
AT216820TAustriaT
ATE216820T1AustriaT1
DE69620904D1GermanyD1
US2002107814A1United States of AmericaA1
CA2441117A1CanadaA1
WO02075508A2World Intellectual Property Organization (WIPO)A2
AU2002250405A1AustraliaA1
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WO03088166A3World Intellectual Property Organization (WIPO)A3
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AU2004251364A1AustraliaA1
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JP2005525731AJapanA
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CN1826579AChinaA
JP2007500885AJapanA
EP1164746B1European Patent Office (EPO)B1
AT353506TAustriaT
ATE353506T1AustriaT1
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WO2005010686A3World Intellectual Property Organization (WIPO)A3
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WO2005010687A3World Intellectual Property Organization (WIPO)A3
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CN101036339AChinaA
EP1646937A4European Patent Office (EPO)A4
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CN101268649AChinaA
CN100473002CChinaC
EP1636682A4European Patent Office (EPO)A4
US7529928B2United States of AmericaB2
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EP1646937B1European Patent Office (EPO)B1
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